|
Current Volcanic Activity
| VOLCANO: |
YEAR OF MOST RECENT
SIGNIFICANT ERUPTION |
DATE OF MOST RECENT ACTIVITY REPORT: |
LOCATION
SATELLITE VIEW
and WEB CAM
(if available) |
Augustine, Cook Inlet, Alaska USA
Explosive activity began at Augustine on 11 January. The day before, AVO increased the Concern Color Code from Yellow
to Orange when seismicity began to increase at the volcano. On 11 January at 0444 seismic signals began to be recorded that
were interpreted as being associated with explosions at Augustine's summit. The Concern Color Code was increased to Red, the
highest level. Another explosion occurred at 0513, and satellite imagery confirmed that an ash plume was produced that rose
to ~9.1 km (30,000 ft) a.s.l. and drifted N and E. An ashfall advisory was issued by the National Weather Service. Seismicity
decreased after the explosions. During a flight over the volcano, scientists saw volcanic mudflows on the E, S, and W sides
of the volcano. Minor rock and snow avalanche deposits were visible high on the SW part of the edifice. According to news
articles, several flights were canceled or diverted due to ash in air space.
On 12 January, the Concern Color Code
was reduced to Orange. On 13 January, seismicity began to increase. An eruption on the 13th from about 0355 to 0439 produced
an ash plume to 10.4 km (34,000 ft) a.s.l. On the 13th, the volcano entered a period of repetitive and explosive eruptions,
with explosions occurring at 0444, 0847, 1122, and 1640. Each event produced ash plumes, mudflows, and pyroclastic flows.
The ash plumes produced from these eruptions rose higher than 9.1 km (30,000 ft) a.s.l. Ash drifted ESE and a small amount
of ash fell in communities of the SW Kenai Peninsula. Explosions on the 13th at 1858 and on the 14th at 0014 were similar
in size and duration as the previous four. In response to these eruptions, the National Weather Service issued an ashfall
advisory for the western Kenai Peninsula S of Ninilchik. No explosions were recorded later on the 14th. The level of seismic
activity declined after an explosion on 14 January at 0016, so the Concern Color Code was reduced to Orange on 15 January
at 0945. Observations on 16 January confirmed that pyroclastic deposits were widespread on the volcano's flanks, as seen in
web camera images. Also, a small lava dome appeared to have extruded at the summit.
AVO reported on the 16th that the
level of seismic activity at the volcano remained above background. It is likely, but not certain, that further explosive
activity will occur. Explosive events similar to those of 13 and 14 January could occur with little or no warning.
Source:
Alaska Volcano Observatory (Click here for the preliminary hazard assessment from AVO) |
2005 |
January 17, 2006
|
59.363N, 153.43W
Satellite View
WEB CAM |
Mount Martin, Alaska USA
Increased seismicity occurred at Martin during 8 January until at least 15 January. About 300 earthquakes were recorded
during 2 days, in contrast to the background rate of ~25 earthquakes per month since the seismic network was installed in
1996. AVO increased the Concern Color Code to Yellow. AVO reported that swarms of earthquakes of this nature are common at
volcanoes such as Martin, and do not suggest that eruptive activity is imminent. Satellite data showed nothing unusual, although
steaming is frequently observed at the volcano. |
1953 |
January 17, 2006
|
58.172N, 155.361W
Satellite View |
Colima, Mexico
During 11-15 January, several small explosions at Colima produced ash plumes. The highest rising ash plume was produced
by an explosion on 11 November and reached ~9.1 km (30,000 ft) a.s.l. The plume drifted ENE.
Sources: Universidad
de Colima, Washington Volcanic Ash Advisory Center |
2005, ongoing |
January 17, 2006 |
19.51N, 103.62W
Satellite View
WEB CAM |
Dukono, Halmahera, Indonesia
Ash from Dukono was visible on satellite imagery on 12 January at a height of ~3 km (10,000 ft) a.s.l., extending
SW.
Source: Darwin Volcanic Ash Advisory Center |
2005 |
January 17, 2006
|
1.70N, 127.87E
Satellite View |
Fuego, Guatemala
During 11-16 January, moderate-to-strong explosions at Fuego produced ash plumes that rose to ~1.5 km above the volcano
(or 4,900 ft a.s.l.). Incandescent lava was hurled ~40 m high.
During an overnight visit to a neighboring summit by
Craig Chesner and Sid Halsor, Strombolian eruptions took place at roughly half-hour intervals. The morphology of Fuego's active
summit vent-area contained a steep-sided cone.
Sources: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia,
e Hidrologia; Craig Chesner (Eastern Illinois University, Charleston, Illinois, USA) and Sid Halsor (Wilkes Barre University,
Wilkes Barre, Pennsylvania, USA) |
2005, ongoing |
January 17, 2006 |
14.5N, 90.9W
Satellite View
|
Galeras, Colombia
During a flight over Galeras on 13 January, scientists saw a lava dome in the volcano's main crater. Around this
time, there was an increase in the amount of seismicity and deformation. Galeras remained at Alert Level 3 ("changes in the
behavior of volcanic activity have been noted").
Source: Instituto Colombiano de Geologia y Mineria |
2005 |
January 17, 2006
|
1.22N, 77.37W
Satellite View |
Kilauea, Hawai'i, USA
During 11-14 January, lava from Kilauea continued to enter the sea at the East Lae`apuki area, building a new lava
delta. Surface lava flows were visible on the Pulama pali fault scarp. On 10 January the summit deflation switched abruptly
to inflation after a loss of 5.2 microradians. Relatively high tremor occurred at this time. Tremor quickly dropped, becoming
weak to moderate when deflation ended, with seismicity punctuated by a few small earthquakes. By 13 January, background volcanic
tremor was near normal levels at Kilauea's summit and reached moderate levels at Pu`u `O`o. On 14 January, the lava delta
was about 500 m long (parallel to shore) and still only 140 m wide.
Source: US Geological Survey Hawaiian Volcano
Observatory |
2005, ongoing |
January 17, 2006
|
19.452N, 155.292W
Satellite View
WEB CAM |
Santa Ana, El Salvador
During 6-13 January, volcanic activity was moderate at Santa Ana. Seismicity was a bit over normal levels with small
earthquakes occurring, which were interpreted as being associated with gas pulses. Continuous low-level emissions of steam
and gas originated from the lagoon and from fumaroles within the crater. The sulfur-dioxide flux ranged between 544 and 2,300
metric tons per day. The Alert Level remained at Red, the highest level, within a 5-km radius around the volcano's summit
crater.
Sources: Servicio Nacional de Estudios Territoriales (SNET) |
2005 |
January 17, 2006 |
13.9N, 89.6W
Satellite View |
Santa Maria, Guatemala
During 11-13 January, several explosions occurred at Santa Maria's Santiaguito lava-dome complex, producing ash plumes
that rose to ~1.5 km above the volcano (or 17,300 ft a.s.l.) and drifted SW. Lava avalanches originated from the SW edge of
the Caliente dome. An explosion on the morning of 11 January generated a small pyroclastic flow that traveled down Caliente
dome to the NE. INSIVUMEH reported on 16 January that a slight decrease in explosive activity was observed at the volcnao
during the previous month, with small-to-moderate explosions producing ash clouds that rose to ~1 km above the crater (or
15,650 ft a.s.l.). On the 16th there were reports of a small amount of ashfall in the urban area of San Felipe Retalhuleu.
Source: Instituto Nacional de Sismologia, Vulcanologia, Meterologia, e Hidrologia |
2005, ongoing |
January 17, 2006
|
14.8N, 91.5W
Satellite View |
Soufriere Hills, Montserrat, West Indies
Activity at Soufriere Hills remained at elevated levels during 6-13 January. Photographs revealed that the lava dome
continued to grow throughout the report period over a broad sector extending from the E around to the N. Numerous small rockfalls
continued from the E and NE flanks of the lava dome, adding talus in the upper reaches of the Tar River valley. The sulfur-dioxide
flux averaged 724 metric tons per day.
Source: Montserrat Volcano Observatory |
2004 |
January 17, 2006
|
16.7N, 62.2W
Satellite View |
Mount St. Helens, USA
Growth of the new lava dome inside the crater of Mount St. Helens continued during 11-16 January, accompanied by
low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash. There were no significant
changes in seismicity or deformation during the report period. Small earthquakes continued to be recorded every 2-3 minutes,
with slightly larger events occurring intermittently. St Helens remained at Volcano Advisory (Alert Level 2); aviation color
code Orange.
Source: US Geological Survey Cascades Volcano Observatory |
2005
|
January 17, 2006
|
46.2N, 122.2W
Satellite View
WEB CAM |
Tungurahua, Ecuador
Small-to-moderate explosions at Tungurahua were preceded by long-period earthquakes during 11-16 January. An explosion
on 11 January produced a plume with a moderate amount of ash. The plume drifted E.
Source: Instituto Geofisico-Escuela
Polit?cnica Nacional, Washington Volcanic Ash Advisory Center |
2005, ongoing |
January 17, 2006
|
1.467S, 78.44W
Satellite View |
Aoba, Ambae Island, Vanuatu
According to a news report on 4 January, all of the 3,000 people displaced by the eruption of Aoba returned home.
The eruption began on 27 November 2005. During 6-10 December, small-scale volcanic activity that began at Aoba (also locally
called Mt. Manaro) on 27 November continued from active vents within Lake Vui, the summit crater lake. Molten material entered
the crater lake and reacted with water, producing small explosive eruptions and a plume of steam and gas that rose to a height
of 3.9-4.5 km (12,800-14,800 ft) a.s.l. The eruption built a cone around the active vents, enclosing them on three sides and
forming an island ~200 m wide and 50-60 m high in the lake.
Sources: Radio New Zealand International News, Charlie
Douglas and Morris Harrison, Department of Geology, Mines and Water Resources (DGMWR), Brad Scott, and Steve Sherburn, Institute
of Geological and Nuclear Sciences (GNS) via the Volcano Listserv |
1995 |
January 10, 2006
|
15.40S, 167.83E
Satellite View |
Barren Island, Andaman Islands, India
Satellite imagery showed a thin ash plume emitted from Barren Island extending WNW during 5-7 January.
Source:
Darwin Volcanic Ash Advisory Center |
1995 |
January 10, 2006 |
12.29N, 93.88E
Satellite View |
Popocatepetl, Mexico
A small explosion occurred at Popocatepetl on 6 January around 0042. According to the Washington VAAC, the resultant
ash plume was visible on satellite imagery at a height of ~5.8 km (19,000 ft a.s.l.), extending NE. CENAPRED reported that
after the explosion overall activity decreased to previous levels.
Sources: Centro Nacional de Prevencion de Desastres,
Washington Volcanic Ash Advisory Center |
2004 |
January 10, 2006
|
19.0N, 98.6W
Satellite View
WEB CAM
(Select Tamano A or B) |
Spurr, Southwestern Alaska, USA
Seismicity remained above background levels at Spurr during 30 December to 6 January. Clear satellite and web camera
views of the volcano showed no unusual activity. Spurr remained at Concern Color Code Yellow.
Source: Alaska Volcano
Observatory |
1992 |
January 10, 2006
|
61.299N, 152.251W
Satellite View
WEB CAM |
Suwanose-Jima Ryukyu Islands, Japan
Based on information from JMA, the Tokyo VAAC reported that explosions occurred at Suwanose-jima on 1 and 10 January.
An explosion on 10 January produced an ash plume to a height of ~1.8 km (6,000 ft) a.s.l. The heights of ash clouds from other
explosions were not reported.
Source: Tokyo Volcanic Ash Center |
2005 |
January 10, 2006
|
29.53N, 129.72E
Satellite View |
Piton de la Fournaise, Reunion Island, Indian Ocean
Following summit inflation that had been measured at Piton de la Fournaise since the last eruption on 29 November,
a seismic crisis began beneath Dolomieu Crater on 26 December at 1444. During the next 2 hours, seismicity shifted to the
NE in the direction of "Nez Coupe de Sainte Rose." A first fissure opened at 1715 at the NE base of Piton de la Fournaise.
At 2200 eruptive fissures opened in the caldera wall ~500 m E of "Nez Coupe de Sainte Rose," and a lava flow traveled into
the "Plaine des Osmondes." By the 28th, eruptive activity was almost constant and an aa lava flow slowly traveled in the "Grandes
Brule" and had reached to within ~3 km of the national road.
Source: Observatoire Volcanologique du Piton de la Fournaise
via the Volcano Listserv |
2004 |
December 27, 2005
|
21.23S, 55.71E
Satellite View
WEB CAM |
Soputan, Sulawesi, Indonesia
A phreatic eruption began at Soputan on 26 December around 1230 following heavy rain that contacted lava at the volcano's
summit. On 27 December at 0400, a Strombolian eruption began that lasted ~50 minutes. Incandescent volcanic material was ejected
~35 m, and avalanches of volcanic material traveled as far as 750 m E. Around 0640 the avalanches became larger, as pyroclastic
avalanches occurred from the edge of the lava. The avalanches extended 200 m E, and booming noises were heard as far as 5
km from the summit. The Darwin VAAC reported that an ash plume reached a height of ~5.8 km (~19,000 ft) a.s.l. and drifted
SE.
As of 28 December, eruptive activity continued at Soputan, producing ash plumes to a height of ~1 km above the
volcano (or 9,100 ft a.s.l.). Strombolian eruptions continued, ejecting incandescent volcanic material up to 200 m above the
summit (or 6,500 ft a.s.l.). Pyroclastic avalanches traveled ~500 m E and SW. This was the fourth event at Soputan in 2005,
with previous activity on 14 and 20 April, and on 12 September. The Alert Level remained at 2, since the volcano is about
11 km from the nearest settlement. Visitors are prohibited from climbing Soputan's summit and camping around Kawah Masem.
Sources: Directorate of Volcanology and Geological Hazard Mitigation, Darwin Volcanic Ash Advisory Center |
2005 |
December 27, 2005 |
1.11N, 124E
Satellite View |
Karymsky, Kamchatka, Russia
Interpretations of seismic data from Karymsky suggested that ten ash plumes rose to ~3.6 km (11,800 ft) a.s.l. during
16-23 December. KVERT volcanologists reported that during 17-21 December, ash plumes rose 2.5-3 km (8,200-9,800 ft) a.s.l.
and extended WSW and ENE of the volcano. They warned that such activity could affect low-flying aircraft in the vicinity of
the volcano. Karymsky remained at Concern Color Code Orange.
Source:Kamchatkan Volcanic Eruption Response Team |
2005, ongoing |
December 27, 2005
|
54.0N, 159.5E
Satellite View |
Bezymianny, Kamchatka, Russia
After an explosive eruption at Bezymianny on 30 November, seismic activity at the volcano decreased to background
levels. On 2 December the Concern Color Code was reduced from Orange to Yellow. On 9 December, KVERT reported that based on
past experience with Bezymianny, a viscous lava flow was probably active at the summit lava dome and there were no indications
that an explosive eruption was imminent.
Source: Kamchatkan Volcanic Eruption Response Team |
2005 |
December 13, 2005
|
55.98N, 160.58E
Satellite View
WEB CAM |
Sakura-Jima, Kyushu, Japan
Based on information from JMA, the Tokyo VAAC reported that an explosion at Sakura-jima on 9 December produced a plume
to a height of ~2.7 km (9,000 ft) a.s.l. that drifted S.
Source: Tokyo Volcanic Ash Advisory Center |
2005 |
December 13, 2005
|
31.58N 130.67E
Satellite View
WEB CAM |
Karthala, Comoros Islands, Indian Ocean
According to news reports, a phreatomagmatic eruption occurred at Karthala during the evening of 24 November. Ash
fell in several towns, including in the capital city Morini along the Grand Comore island's SW coast and on the volcano's
W flank. According to a UN OCHA report, local authorities estimated that about 2,000 people temporarily fled their villages
in the region of Bamboa in the central part of Grand Comore Island, and sought refuge in less exposed areas, such as Mitsamiouli,
Mboud?, and Oichili. During the evacuation, an infant died due to respiratory distress. Ashfall caused the closure of shops
and schools in Moroni and security forces cleaned the streets using water tankers. Residents were warned to avoid inhaling
ash. Preliminary assessments revealed that about 118,000 people living in 75 villages may have been affected by the contamination
of domestic water tanks. This is of particular concern because it is the height of the dry season. A UN worker reported that
245,000 people live in the area exposed to ash and estimated that 175,000 could face water shortages. There were also concerns
about the impact of ash on agriculture and livestock.
The Toulouse VAAC reported that ash from the early phase of the
eruption was not immediately seen on satellite imagery, but that ash fell at the local airport. AFWA reported that the ash
cloud was visible on satellite imagery on 25 November at a height of ~11.6 km (~38,000 ft) a.s.l. According to the Karthala
Volcano Observatory, a lava lake formed in the volcano's crater. As of 29 November, seismic activity continued at the volcano.
Sources: Toulouse VAAC, United Nations Office for the Coordination of Humanitarian Affairs (UN OCHA), Integrated
Regional Information Network, Air Force Weather Agency, Agence France Presse, News 24, Angola Press |
1991 |
November 29, 2005 |
11.75N, 43.38E
Satellite View |
Cleveland, Chuginadak Island, Alaska
Activity at Cleveland further decreased during 18-25 November. Following a brief ash burst on 7 October, no further
ash emissions were noted. AVO did not detect a temperature anomaly in the vicinity of the volcano after 6 November. Based
on this information, AVO concluded that the likelihood of significant ash-producing events decreased, so they terminated Concern
Color Code Yellow. Cleveland is not monitored with seismic equipment, therefore AVO did not assign Color Concern Code Green.
Source: Alaska Volcano Observatory |
2001 |
November 29, 2005 |
52.82N, 169.95W
Satellite View |
Garbuna Group, New Britain, Papua New Guinea
During 21-27 November, two vents at the summit of Garbuna continued to release weak-to-moderate volumes of steam
that rose a few hundred meters above the summit and drifted in various directions. No incandescence was seen at the volcano
and no noises were heard. Seismicity was at very low levels.
Sources: Darwin Volcanic Ash Advisory Center |
Unknown |
November 29, 2005 |
5.45S, 150.03E
Satellite View |
Langila, New Britain, Papua New Guinea
Vulcanian eruptions continued at Langila's Crater 2 during 21-27 November, with a slight increase in the level of
activity compared to the previous week. The activity increase was marked by ash emissions that rose to heights between 1 and
2 km above the summit crater (or 7,650 and 10,900 ft a.s.l.). The ash clouds drifted W, SW, SE, and NW, depositing ash in
those areas. Incandescence and projections of volcanic material were visible at the volcano during many nights. Crater 3 was
quiet during the report period. Seismicity was at low-to-moderate levels, consisting of low-frequency earthquakes associated
with the Vulcanian activity and periodic volcanic tremor.
Source: Rabaul Volcano Observatory via the Darwin Volcanic
Ash Advisory Center |
2004 |
November 29, 2005 |
5.52S, 148.42E
Satellite View |
Rabaul, Papua New Guinea
Rabaul caldera's active Tavurvur cone was quiet after ash emissions ceased on 20 November. During 21-27 November,
only very small traces of gas were released from the eruption vent and from other spots on the summit area. Seismicity was
at very low levels and a small amount of ground inflation was recorded.
Source: Rabaul Volcano Observatory via the
Darwin Volcanic Ash Advisory Center |
2004 |
November 29, 2005 |
4.27S, 152.20E
Satellite View |
Tanaga, Aleutian Islands, USA
AVO reported on 25 November that for several weeks seismicity beneath young volcanic vents on Tanaga Island decreased
significantly from levels recorded in early October. Satellite images of the island showed no anomalous temperatures or evidence
of ash emissions. AVO reported that based on the decrease in earthquake counts and frequency of tremor episodes, the likelihood
of an eruption had diminished. Therefore, AVO downgraded the Concern Color Code from Yellow to Green.
Source: Alaska
Volcano Observatory |
2004 |
November 29, 2005
|
51.88N, 178.15W
Satellite View |
Ulawun, New Britain, Papua New Guinea
A thin plume emitted from Ulawun was visible extending N on satellite imagery on 23 November. |
2003 |
November 29, 2005 |
5.04S, 151.3E
Satellite View |
San Cristobal, Nicaragua
There was an increase in seismicity at San Crist?bal beginning on 19 November. Increased tremor was interpreted as
being related to gas and ash emissions. Ash fell W of the volcano and near the town of Chinandega, ~15 km SW of the volcano.
The amount of tremor decreased later.
Source: Instituto Nicaraguense de Estudios Territoriales (INETER) |
1998 |
November 22, 2005 |
12.7N, 87.0W
Satellite View |
Avachinsky, Kamchatka, Russia
KVERT reported on 8 November that the number and energy of shallow earthquakes below Avachinsky increased during the
previous month. A weak thermal anomaly near the volcano's summit was visible on satellite imagery on 7 November. KVERT reported
that based on these changes the possibility of sudden ash explosions at Avachinsky had increased, so the Concern Color Code
was raised from Green to Yellow on 8 November.
Source: Kamchatkan Volcanic Eruption Response Team |
2005 |
November 22, 2005 |
53.25N, 158.83E
Satellite View |
Reventador, Ecuador
During 7-13 November, the number of earthquakes at Reventador increased slightly in comparison to the previous week.
Small explosions produced ash plumes that rose to a height of ~4.6 km (15,000 ft) a.s.l.
Sources: Instituto Geofisico-Escuela
Poltecnica Nacional, Washington Volcanic Ash Advisory Center |
2005 |
November 22, 2005
|
0.07S, 77.67W
Satellite View |
Montagu Island, South Sandwich Islands
A partly cloudy ASTER satellite image from 3 November appeared to indicate that large-scale effusive activity from
the summit of Montagu Island (Mt. Belinda) had ceased. The image showed that the 3.5-km-long lava flow noted in previous reports
(observed entering the sea in an image from 23 September 2005) had extended the shoreline on the N side of island. The new
land extended approximately 500 m from the previous shoreline, and was ~400 m wide, equating to a total area of 0.2 square
kilometers.
Source: Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts Team and John Smellie of
the British Antarctic Survey |
2005, ongoing |
November 15, 2005
|
58.42S, 26.33W
Satellite View |
Nyiragongo, Democratic Republic of the Congo
On 13 November, a plume that may have contained some ash was emitted from Nyiragongo and seen on satellite imagery.
Source: Toulouse Volcanic Ash Advisory Center |
2005 |
November 15, 2005 |
1.52S, 29.25E
Satellite View |
Arenal, Costa Rica
Explosive activity began at Arenal on 2 November at 1454. A pyroclastic flow was generated at 1502 and movement continued
for ~10 minutes. During a visit to the volcano the next day, OVISICORI-UNA scientists found that the mid-sized pyroclastic
flow traveled down the volcano's W flank, producing an ash cloud that drifted SE. An area was impacted that extended from
the volcano's summit to about 1,000 m a.s.l. on Arenal's W flank. The pyroclastic flow occurred in an area that is closed
to visitors. During the previous several months lava flows on the volcano's SW flank had been growing rapidly.
Source:
Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVISICORI-UNA) |
2005 |
November 08, 2005 |
10.46N, 84.70W
Satellite View |
Veniaminof, Alaska Peninsula, USA
The Concern Color Code at Veniaminof was increased on 4 November from Green to Yellow after a low-level minor ash
emission occurred from the intracaldera cone beginning at 0929. Ash rose a few hundred meters above the cone, drifted E, and
dissipated rapidly. Minor ashfall was probably confined to the summit caldera. During the previous 2 weeks, occasional steaming
from the intracaldera cone was observed. Very weak seismic tremor and a few small discrete seismic events were recorded at
the station closest to the active cone. However, AVO reported that there were no indications from seismic data that a significantly
larger eruption was imminent. They expect that steam and ash emissions may continue intermittently and could pose a hazard
to people and low-flying aircraft in the vicinity of the active cone.
Sources: Alaska Volcano Observatory |
2004 |
November 08, 2005
|
56.17N, 159.38W
Satellite View
WEB CAM |
Katmai, Alaska, USA
Strong winds in the Katmai area picked up loose ash deposited during the 1912 eruption and carried it E over Kodiak
Island. AVO recorded a large area of resuspended ash on satellite imagery. The National Weather Service estimated that the
top of the plume was at 1.5 km (5,000 ft) a.s.l. Katmai remained at Concern Color Code Green.
Source: Alaska Volcano
Observatory |
1912 |
November 08, 2005
|
58.28N, 154.96W
Satellite View |
Kliuchevskoi, Kamchatka, Russia
Seismic activity at Kliuchevskoi was at background levels during the previous 3 weeks and no activity was observed
on satellite imagery. Since there were no indications that an eruption was imminent at Kliuchevskoi, KVERT reduced the Concern
Color Code from Yellow to Green on 4 November.
Source: Kamchatkan Volcanic Eruption Response Team |
2005, ongoing |
November 08, 2005
|
56.06N, 160.64E
Satellite View
WEB CAM |
Shiveluch, Kamchatka, Russia
Seismic activity and lava-dome growth continued at Shiveluch during 28 October to 4 November. Seismicity decreased
gradually during the previous 2 weeks and only weak avalanches were recorded, so KVERT reduced the Concern Color Code at Shiveluch
from Orange to Yellow on 4 November. |
2005, ongoing |
November 08, 2005
|
56.65N, 161.36E
Satellite View
WEB CAM |
Sierra Negra, Galapagos Islands
According to IG, an eruption began at Sierra Negra on the S end of Isabela Island on 22 October at 1730 when an explosion
was heard by many people in the town of Villamil, 20 km SE of the volcano. The eruption was preceded by a seismic event on
22 October at 1438, and by earthquakes on 19 October and 2 weeks earlier. The Washington VAAC recorded an ash cloud on satellite
imagery at 1745 at a height of ~15.2 km (50,000 ft) a.s.l. moving SW, and a very large hotspot. The ash cloud may have reached
a height of 20 km (65,600 ft) a.s.l. Extensive lava fountains were seen rising to heights of 200-300 m along a segment of
the Sierra Negra rim. Incandescent lava flowed several kilometers down the outer NW flank of the volcano's edifice and tourists
reported seeing two lava flows descending the N flank. The exact orientation of flows on the volcano's flanks was not clear
from early reports. Scientists did not see active lava flows in this area or evidence of flows entering the sea during an
overflight on 23 October.
During a visit to Sierra Negra on 23 October, scientists saw that the eruption originated
from four adjacent craters aligned along a 500-m-long fracture at the base of the inner wall of the volcano's caldera in the
NE sector. Lava traveled from four principal vents southwards with exceptional force, volume, and speed downslope in several
main channels. Based on observations, the main lava river traveled nearly 20 m/sec as it left its source vents. Two vents
mainly supplied lava to the many lava rivers flowing southward over the northern caldera bench and then down onto the caldera
floor. The feeding fracture apparently extended westward along the inner wall, but then climbed up onto the caldera rim itself
where its trace was not obvious. However, small vents with fountaining and incandescent lava were observed on the rim along
this general fracture system, implying that the active fracture extended for about 2 km W of the main vents.
By 23
October around 1530, the lava formed one large flow that was 1-1.5 km wide and had progressed ~7 km southeastward along the
base of the eastern interior wall of the caldera, then westward along the southern wall reaching a point almost halfway across
the caldera. The volume of lava ejected at this time was estimated at 25 million cubic meters. On 26 October, there were reports
that lava was no longer emitted from one of the four principal vents. No populated areas on the island were threatened by
the eruption.
Sources:Instituto Geofisico-Escuela Politecnica Nacional |
2005 |
November 01, 2005 |
0.83S, 91.17W
Satellite View |
Manam, Papua New Guinea
During 29-30 October, low-level eruptive activity continued at Manam with plumes visible on satellite imagery extending
NW.
Sources: Darwin Volcanic Ash Advisory Center |
2005 |
November 01, 2005 |
4.1S, 145.0E
Satellite View |
Nyamuragira, Democratic Republic of Congo
Beginning on 23 October, GVO recorded heightened seismic activity along the East African Rift and around the Virunga
volcanoes when a swarm of long-period earthquakes occurred N of Nyamuragira. More than 140 events were recorded at a station
19 km E of the volcano. On 27 October at 1500, another swarm of long-period earthquakes began beneath the same area. More
than 300 events were recorded until at least 28 October. At 2010, a M 4.5 tectonic earthquake occurred N of Lake Tanganika,
which was followed by several aftershocks. GVO noted that this activity reinforces the likelihood of an eruption in the near
future, but volcanic activity would not pose a threat to inhabited areas. The Alert Level for the nearby city of Goma remained
at Yellow.
Source: Goma Volcano Observatory (ovggoma@rwanda1.com, Kasereka Mahinda, GVO Scientist in Charge (mkasereka@yahoo.fr)
and Jacques Durieux, UN Program Manager (jdurieux@chello.fr)) |
2004 |
November 01, 2005 |
1.4S, 29.2E |
Sangay, Ecuador
Based on information from IG, the Washington VAAC reported that ash was seen over Sangay on 26 October at 0758. No
ash was visible on satellite imagery.
Source: Washington Volcanic Ash Advisory Center |
2005 |
November 01, 2005
|
2.0S, 78.3W
Satellite View |
Dabbahu, Ethiopia
Volcanic activity at Erta Ale discussed in the 5-11 October 2005 Weekly Volcanic Activity Report actually occurred
at Dabbahu. The correct report is below. A team of scientists visited the Da'Ure locality immediately adjacent to the
NE flank of the Quaternary Dabbahu (or Boina) felsic complex on 4 and 5 October after receiving reports of volcanic activity
there on 26 September. People in the area noted that on 26 September at about 1300 a very strong earthquake shook the area,
and was followed by a dark column of "smoke" that rose high into the atmosphere and spread out to form a cloud, which darkened
the area for 3 days and 3 nights. The scientists determined that a minor explosive eruption occurred from two semi-circular
vents, producing ashfall that was ~5 cm thick near the vent. Ash deposits extended more than 500 m from the vent. Boulders
emitted during the eruption were as large as 3 m and were deposited as far as 20 meters away. The scientists noted intense
degassing from the vents, the scent of sulfur dioxide, and the sound of boiling water in the vents. As of about 10 October,
the Addis Ababa University Geophysical Observatory reported that seismic activity in the area was continuing.
Sources:
Gezahegn Yirgu, Department of Earth Sciences, Addis Ababa University |
2004 |
October 18, 2005 |
12.6N, 40.48E
Satellite View |
Erebus, Ross Island, Antarctica
According to the Mt. Erebus activity log, several "small- to medium-sized" eruptions occurred during 12-18 October,
with a "very large" eruption occurring on 14 October. The eruption sizes were based on comparisons of seismic data for known
Erebus eruptions.
Source: Mount Erebus Volcano Observatory |
2005 |
October 18, 2005
|
77.53S, 167.17E
Satellite View |
Karangetang, Siau Island, Indonesia
Gas was emitted from Karangetang's North and Batukole craters during 10-16 October. Seismicity was dominated by multiphase
events, which decreased in number in comparison to the previous week. The number of deep volcanic earthquakes increased. Karangetang
remained at Alert Level 3 (on a scale of 1-4).
Source: Directorate of Volcanology and Geological Hazard Mitigation
|
2005 |
October 18, 2005 |
2.78N, 125.48E
Satellite View |
Mount Michael, Saunders Island, South Sandwich Islands
The first MODVOLC alerts at Mount Michael since May 2003 recently began, indicating an increased level of activity
in the island's summit crater (and presumed lava lake). The alerts occurred on 3, 5, and 6 October.
Sources: Hawai'i
Institute of Geophysics and Planetology (HIGP) Thermal Alerts Team and John Smellie of the British Antarctic Survey |
2003 |
October 18, 2005
|
57.78S, 26.45W
Satellite View |
San Miguel, El Salvador
SNET reported that activity had not changed at San Miguel after small clusters of earthquakes occurred at the volcano
during 27 September to about 14 October. During a visit to the volcano on 13 October small rockfalls were seen, but there
were no significant changes in the crater and sulfur-dioxide emissions were very weak.
Source: Servicio Nacional de
Estudios Territoriales (SNET) |
2004 |
October 18, 2005
|
13.431N, 88.272W
Satellite View |
Stromboli, Italy
A plume emitted from Stromboli that may have contained ash was visible on satellite imagery on 14 October at a height
around 1.8-2.4 km (6,000-8,000 ft) a.s.l. The plume extended ~10 km NW of the volcano.
Source: Toulouse Volcanic Ash
Advisory Center |
2005 |
October 18, 2005 |
38.79N, 15.21E
Satellite View
WEB CAM |
Cayambe, Ecuador
A cluster of earthquakes that had been recorded at Cayambe since 16 September, with about 300 small earthquakes occurring
during 16-18 September, decreased in number significantly after 19 September. During 19-25 September, an average of 5.3 earthquakes
occurred daily.
Source: Instituto Geofisico-Escuela Politecnica Nacional |
1786 |
October 04, 2005
|
0.029 N 77.986 W
Satellite View |
Bagana, Bougainville Island, Papua New Guinea
Ash was emitted from Bagana during 17-18 September and drifted W and NW. During 14-18 September, incandescence from
the volcano was visible at night. On the 18th, observers described what could have been cascading volcanic material detached
from a possible active lava flow.
Source: Rabaul Volcano Observatory |
2005, ongoing |
September 27, 2005
|
6.14S, 155.19E
Satellite View |
Ebeko, Kuril Islands, Russia
Strong fumarolic activity continued at Ebeko's crater during 9-16 September. Ebeko remained at Concern Color Code
Yellow.
Source: Kamchatkan Volcanic Eruption Response Team |
1991 |
September 20, 2005 |
50.68N, 156.02E
Satellite View |
Anatahan, Mariana Islands
Satellite images did not show ash emissions from Anatahan during 3 September to at least 12 September, and there were
no reports of volcanic activity from pilots.
Sources: Emergency Management Office of the Commonwealth of the Mariana
Islands and the US Geological Survey Hawaiian Volcano Observatory |
1920 |
September 13, 2005
|
16.35N, 145.67E
Satellite View |
Cotopaxi, Ecuador
During 29 August to 4 September, the number of long-period and hybrid earthquakes at Cotopaxi decreased slightly,
and the number of volcano-tectonic earthquakes increased, in comparison to the previous week. No changes in deformation were
recorded, and no surficial changes were seen at the volcano.
Source: Instituto Geofisico-Escuela Politecnica Nacional
|
1940 |
September 13, 2005 |
00.677S, 78.436W
Satellite View |
Pacaya, Guatemala
During 7-11 September, occasional Strombolian activity occurred at Pacaya. Volcanic bombs were emitted from two craters,
reaching up to 30 m above their rims. Incandescence from lava flows on the volcano's SE flank was visible on several nights.
Source: Instituto Nacional de Sismologia, Vulcanologia, Meterologia, e Hidrologia |
2002 |
September 13, 2005 |
14.4N, 90.6W
Satellite View |
Chiginagak, Alaska
AVO reported that a 400-m-wide "melt-water lake" formed in the snow-and-ice filled summit crater of Chiginagak sometime
after the previous observation in August 2004. Earlier this summer, the southern crater rim of Chiginagak was breached, allowing
a portion of the lake to drain. The resulting lahar left a deposit on a glacier draining the crater to the S and caused flooding
of 1-2 m above normal at Indecision Creek. The breach in the crater rim and the ensuing lahar probably occurred in July 2005;
there were reports from a nearby lodge at this time of strong sulfur smells and cloudy, yellowish water in the Indecision
Creek drainage. There were no indications that an eruption is imminent or that this event is necessarily precursory to an
eruption. Chiginagak is not seismically monitored, so AVO did not assign it a Concern Color Code.
Source: Alaska Volcano
Observatory |
1998 |
August 30, 2005 |
57.13N, 157.00W
Satellite View |
Mayon, Philippines
PHIVOLCS reported on 23 August that an aerial survey of Mayon conducted on 17 August revealed that lava had accumulated
within the volcano's summit crater. The lava dome was extruding very slowly and the volume of lava was contained within the
crater. PHIVOLCS warned that the volcano remains at Alert Level 2, and that people cannot enter the Permanent Danger Zone
of 6 km radius around the volcano.
Source: Philippine Institute of Volcanology and Seismology |
2004 |
August 30, 2005 |
13.3N, 123.7E
Satellite View |
Mauna Loa, Hawai'i, USA
HVO reported on 21 August that extension across Mauna Loa's summit had resumed over the previous few weeks after pausing
for much of July. Seismicity remained at low levels at the volcano.
Source: US Geological Survey Hawaiian Volcano
Observatory |
1984 |
August 23, 2005 |
19.5N, 155.6W
Satellite View
WEB CAM |
Ol Doinyo Lengai, Tanzania, Africa
During a trip to Ol Doinyo Lengai by Fred Belton during 19 July to 9 August, three eruptions occurred at cone T58C
on 20 and 21 July, one of which lasted 20 hours. No further eruptions were observed through 9 August. The most recent eruption
prior to 20 July occurred on 9 July when large lava flows completely covered the campsite in the E part of the crater. Photos
indicated that there may have been infrequent activity at the volcano at least as long ago as 15 May. No new cones had formed
at the volcano since 15 July 2004 when T58C was created.
Source: Fred Belton via the European Volcanological Society
(SVE) |
2004 |
August 23, 2005 |
2.751S, 35.902E
Satellite View |
Pago, New Britain, Papua New Guinea
Pago was quiet during 15-21 August, with only steam emissions occurring from the upper vents of the fissure system.
Seismicity was at low levels.
Source: Rabaul Volcano Observatory via the Darwin Volcanic Ash Advisory Center |
2003 |
August 23, 2005
|
5.58S, 150.52E
Satellite View |
Sarigan, Mariana Islands
A seismic swarm was recorded at Sarigan beginning on 9 August. By 14 August, 630 earthquakes had been recorded. The
seismic swarm that began at Sarigan on 9 August tapered off on 18 August.
Source: Emergency Management Office of the
Commonwealth of the Mariana Islands and the US Geological Survey Hawaiian Volcano Observatory |
No recorded events |
August 23, 2005
|
16.35N, 145.67E
Satellite View |
McDonald Island, southern Indian Ocean, Australia
The Darwin VAAC issued a precautionary advisory on 10 August warning pilots of the possible presence of low-level
ash near McDonald Island. The advisory was based on a press release made by the Australian Minister for the Environment and
Heritage, the parent agent of the Australian Antarctic Division. The press release discussed a hotspot at McDonald Island
that was visible on satellite imagery on 12 July. The Darwin VAAC did not see ash in satellite imagery.
Sources: Darwin
Volcanic Ash Advisory Center, Australian Antarctic Division
|
2001 |
August 16, 2005 |
53.03S, 72.60E
Satellite View |
Concepcion, Island of Ometepe, Nicaragua
According to INETER by 0400 on 3 August, 38 earthquakes had occurred on the Island of Ometepe. The strongest earthquake
(ML 5.6) occurred at 0603 and was felt in the surrounding region. The epicenter was estimated to be underneath Lake Nicaragua,
SE of the Island of Ometepe, ~10-15 km SE of Volcan Maderas. This earthquake did not cause significant damage because the
epicenter was not close to populated areas. The magnitude of this event was comparable to the 1972 earthquake in Managua.
Sources: Instituto Nicaraguense de Estudios Territoriales |
2002 |
August 09, 2005 |
11.5N, 85.6W
Satellite View |
Merapi, Java, Indonesia
DVGHM raised the Alert Level at Marapi from 1 to 2 on 18 July after the number of earthquakes increased dramatically
during 8-14 July. During this period, the volcano's seismic network recorded 112 deep volcanic earthquakes. Normally, an average
of 7 deep volcanic earthquakes occur in 1 week. No significant activity changes were seen at the volcano; gas emissions rose
~50 m above the summit (9,650 ft a.s.l.) and fumarole temperatures were normal.
Source: Directorate of Volcanology
and Geological Hazard Mitigation |
2002 |
July 26, 2005 |
7.54S, 110.44E
Satellite View |
Talang, Sumatra, Indonesia
DVGHM increased the Alert Level at Talang from 2 to 3 on 18 July due to an increase in seismicity at the volcano.
During 15-18 July, the seismic network recorded 93 deep volcanic earthquakes, one low-frequency tremor, and three "felt shocks"
around the N slope of the crater. Minor phreatic activity occurred at the southern and northern slope craters, with ash plumes
rising 0.5-1.5 km above the crater (11,100-14,400 ft a.s.l.).
Source: Directorate of Volcanology and Geological Hazard
Mitigation |
2001 |
July 26, 2005 |
1.0S, 100.7E
Satellite View |
Fukutoku-Okanoba, Japan
On the evening of 2 July, members of the Japan Coast Guard observed a steam plume rising ~1 km above the sea near
the island of Minami-Iwo-jima. On 3 July, JMA confirmed that a small-scale eruption had occurred at the submarine volcano
Fukutoku-Okanoba, prompting the Japan Coast Guard to issue a warning against sailing in the area. Observers saw rock and mud
rising to the sea's surface near the volcano and a ~1-square-km area of water that had turned orange-brown. As of 4 July,
a new island had not formed.
Sources: Daily Yomiuri News, Reuters, Associated Press |
1992 |
July 05, 2005 |
24.28N, 141.485E |
Papandayan, Java, Indonesia
On 16 June, DVGHM raised the Alert Level at Papandayan from 1 to 2 (on a scale of 1-4) due to increased activity at
the volcano. Beginning in early June 2005 the number of volcanic earthquakes increased in comparison to the previous months
and the temperatures of fumaroles increased 3-9 degrees C above normal levels. People were not permitted to visit Mas and
Baru craters.
Source: Directorate of Volcanology and Geological Hazard Mitigation |
2002 |
June 23, 2005
|
7.32S, 107.73E |
Ijen, Java, Indonesia
According to the Darwin VAAC, on 17 June a pilot observed a plume from Ijen at a height of ~6.1 km (20,000 ft) a.s.l.
Ash was not visible on satellite imagery.
Source: Darwin Volcanic Ash Advisory Center |
1999 |
June 23, 2005 |
8.1S, 114.2E |
Mutnovsky, Kamchatka Peninsula, Russia
The Concern Color Code at Mutnovsky was reduced from Yellow to Green during 3-10 June. There were no significant
changes in volcanic activity during the week. A thermal anomaly was observed at the volcano on satellite imagery, possibly
due to the heat from a thermal field.
Source: Kamchatkan Volcanic Eruption Response Team |
2000 |
June 14, 2005
|
52.453N, 158.195E |
Canlaon, Philippines
Steam emissions continued at Canlaon during 25-26 May, rising to a maximum height of 1 km above the volcano's crater
(11,300 ft a.s.l.). Seismic activity remained at low levels. The sulfur-dioxide flux was at ~1,400 metric tons on 26 May,
above the usual flux of 500 metric tons per day.
Sources: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
|
2003 |
May 31, 2005 |
10.4N, 123.1E |
Fernandina, Galapagos Islands, Ecuador
According to the Washington VAAC, a weak hotspot was visible at Fernandina on 29 May at 2045 and a very short narrow
plume of ash and gas was visible around 2215. There were no local reports confirming an eruption. By 30 May at 0615 the emission
had dissipated and only the hotspot remained visible on satellite imagery.
Source: Washington Volcanic Ash Advisory
Center |
1995 |
May 31, 2005 |
0.37S, 91.55W |
Semeru, Java, Indonesia
The Darwin VAAC received a report that a small plume was visible above Semeru's summit on 25 May.
Source:
Darwin VAAC |
2005 |
May 31, 2005 |
8.1S, 112.9E |
Krakatau, Sunda Strait, Indonesia
An increase in seismic activity at Krakatau around 16 May prompted DVGHM to raise the Alert Level at the volcano from
1 to 2 (on a scale of 1-4) on the 16th. |
2001 |
May 24, 2005 |
6.10S, 105.42E |
Awu, Sulawesi, Indonesia
At 1715 on 16 May a pilot reported a low-level plume above Awu. No ash was seen in satellite imagery about one hour
or eight hours later. |
2004 |
May 17, 2005
|
3.67N, 125.50E |
Lascar, Chile
The Buenos Aires VAAC reported an eruption from Lascar seen on satellite imagery early on 4 May that sent an ash plume
into the 4.5-10.6 km a.s.l. range (15,000-35,000 feet), where it was moving to the SE.
Source: Buenos Aires VAAC |
2002 |
May 10, 2005 |
23.57S, 67.73W
Satellite View |
Chikurachki, Kurile island, Russia
During 15-22 April, satellite imagery of Chikurachki lacked a thermal anomaly or ash plumes, so KVERT reduced the
Concern Color Code from Orange to Yellow.
Source: Kamchatkan Volcanic Eruption Response Team via the Alaska Volcano
Observatory |
2003 |
April 26, 2005
|
50.325N, 155.46E
Satellite View |
Aso, Kyushu, Japan
According to a news article, a small explosion at Aso on 14 April emitted a plume of "white smoke" to ~200 m above
the crater (~5,900 ft a.s.l.) and deposited ash around the crater. The explosion occurred after hundreds of small earthquakes
were recorded by JMA during the previous 2 weeks.
Source: Associated Press |
2004 |
April 19, 2005
|
32.88N, 131.1E
Satellite View |
Tangkubanparahu, Western Java, Indonesia
At Tangkubanparahu "white thin smoke" was emitted from Upas Baru crater and Ratu crater on 14 April, and from Upas
Baru crater on 15 April. On 14 and 15 April shallow and deep volcanic earthquakes were recorded. During this time visitors
were banned from the volcano. On 19 April the Alert Level was reduced from 3 to 2 (on a scale of 1-4) and the volcano was
opened to the public, but access was restricted around Ratu crater and not permitted at the other craters.
Source:
Directorate of Volcanology and Geological Hazard Mitigation |
1983
|
April 19, 2005
|
6.77S, 107.60E
Satellite View |
Villarrica, Chile
According to a news report, the Oficina Nacional de Emergencia reported that unusual seismicity was recorded at Villarrica
during early April. Fresh ash deposits were seen outside of the volcano's crater. Visitors were banned from climbing the volcano.
|
2005 |
April 19, 2005 |
39.25S, 71.42W
Satellite View |
Atka, Aluetian Islands, United States
AVO did not receive reports of activity at Korovin volcano in the Atka volcanic center after the original report of
ash-and-steam emissions on 24 February. During 25 February to 4 March, cloud cover prohibited satellite views of the volcano
and no unusual seismicity was registered. Korovin is not monitored by a standard AVO seismic network. Therefore, AVO did not
assign a Concern Color Code to the volcano during the report period. On 24 February AVO raised the Concern Color Code at Korovin
volcano of the Atka volcanic center from Green to Yellow after receiving a report that ash and steam were emitted from Korovin
on 23 February around 1900. According to residents of Atka village near the volcano, the initial ash burst rose to a height
of ~ 2.4 km a.s.l. and drifted E. It was followed by several smaller ash-and-steam bursts. No ashfall was reported in Atka
village, nor were there reports of accompanying volcanic odors, earthquakes, or larger volcanic explosions.
Source:
Alaska Volcano Observatory |
1998 |
March 08, 2005 |
52.381N, 174.154W
Satellite View |
Egon, Flores Island, Indonesia
The Darwin VAAC reported that DVGHM reduced the Alert Level at Egon to 3 (on a scale of 1-4) around 8 March. Ash was
not visible on satellite imagery during 2-8 March.
Source: Darwin Volcanic Ash Advisory Center |
2004 |
March 08, 2005 |
8.7S, 122.55E |
Soufriere St. Vincent, St. Vincent Island, West Indies
According to a news article, residents of the island of St.Vincent reported smelling sulfur in towns as far S as Kingstown.
This sparked fears among the population that volcanic activity had increased at Soufriere St. Vincent. Staff from the Soufriere
Monitoring Unit of the Seismic Research Unit visited the volcano and reported that there was no increase in volcanic activity
according to monitoring-station data and observations. The increased scent of sulfur in towns was attributed to a southward
shift in wind direction towards the towns, rather than the usual E direction. Accordingly, the Alert Level remained low at
Soufriere St. Vincent.
Source: Caribbean Net News |
1979 |
March 01, 2005 |
13.33N, 61.18W
Satellite View |
Etna, Sicily, Italy
INGV-CT reported that the effusive eruption that began at Etna on 7 September 2004 continued through 27 January 2005.
On 18 January the INGV-CT web camera recorded a dense, pulsating gas plume emanating from the summit of Northeast Crater for
a few minutes. During the afternoon of the 18th, a new lava flow formed upslope along the 2,620-m eruptive fissure at about
2,450 m elevation. The lava flow spread about 200 m SE along the middle wall of the western Valle del Bove. The flow moved
slowly, stopping after about 24 hours. Lava emission stopped from the ephemeral vents below 2,000 m elevation. The lower ephemeral
vents started to emit lava again on 19 January. During the afternoon of 22 January, two new lava flows traveled from 2,400
m elevation, along the same lava-tube system fed by the 2,620-m-elevation vent. Two parallel, fast-moving flows spread E.
They were still visible on images recorded on 27 January by the INGV-CT web camera at Milo. In addition, a number of ephemeral
vents and small flows at the lower end of the lava tube were visible.
Source: Istituto Nazionale di Geofisica e Vulcanologia
Sezione di Catania |
2005
|
February 08, 2005
|
37.7N, 15.0E
Satellite View
WEB CAM
WEB CAM |
Poas Volcano, Costa Rica
A field team from OVSICORI-UNA visited Poas on 25 January and found that the level of the volcano's hot acidic crater
lake had risen in comparison to the previous month. Intense and sustained rainfall during the previous months caused the water
level to increase by ~4 m. The area of the lake increased by ~20%. Flooding occurred in relatively flat areas to the N, E,
and SE. Water reached about 150 m towards the SE of the lake. Scattered fumaroles and hot spots at the N base of the lava
dome were flooded. Increased steaming was visible from the National Park.
Source: Observatorio Vulcanologico y Sismologico
de Costa Rica , Universidad Nacional |
1996 |
February 08, 2005 |
10.20N, 84.23W
Satellite View |
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