Posts Tagged ‘Galeras’
Posted by feww on February 10, 2011
Summary of Weekly Volcanic Activity Report – 2 February to 8 February 2011
[Source: SI/USGS]
Recent Activity at Kizimen Volcano
Kizimen Volcano blows out a plume of ash, smoke and steam over the Gulf of Kamchatka on February 1, 2011. Kizimen recent eruptions are said to be both explosive and effusive. This natural-color image was taken by the MODIS aboard the Aqua satellite. Source: NASA-EO. Click image to enlarge.
Kizimen Volcano on Russia’s Kamchatka Peninsula (elev. 2,376m, or 7,795 ft), ejected a plume of ash, steam and volcanic gasses on January 6, 2011, when ALI on NASA’s EO-1 satellite captured this natural-color image. Kizimen had released continuous ash emissions since December 31, 2010, KVERT reported. Kizimen erupted explosively 83 years ago. Source: NASA-EO. Click image to enlarge.
Eruption of Kizimen volcano on January 26, 2011. Photo by P. Shpilenok. http://shpilenok.livejournal.com/44922.html (Image may be subject to copyright.)
New Activity/Unrest:
Map of Volcanoes
Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.
Ongoing Activity:
- Bezymianny, Central Kamchatka (Russia)
- Karymsky, Eastern Kamchatka (Russia)
- Kilauea, Hawaii (USA)
- Kizimen, Eastern Kamchatka (Russia)
- Popocatépetl, México
- Sakura-jima, Kyushu
- Santa María, Guatemala
- Shiveluch, Central Kamchatka (Russia)
- Suwanose-jima, Ryukyu Islands (Japan)
- Tengger Caldera, Eastern Java (Indonesia)
- Villarrica, Central Chile
For additional information, see source.
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Posted in Volcano Watch, Volcano Watch Weekly, VolcanoWatch Weekly | Tagged: Fuego, Galeras, Kirishima, Kizimen Volcano, Nyiragongo | Leave a Comment »
Posted by feww on January 11, 2010
VoW: Turrialba
Turrialba has been quiescent since a series of explosive eruptions during the 19th century that were sometimes accompanied by pyroclastic flows. Photo by Federico Chavarria Kopper, 1999. Caption: GVP.
Volcano Details
- Country: Costa Rica
- Volcano Number: 1405-07=
- Volcano Type: Stratovolcano
- Last Known Eruption: 1866 (see below for latest report)
- Summit Elevation: 3,340 m
- Latitude: 10.025°N (10°1’30″N)
- Longitude: 83.767°W (83°46’1″W)
SI /USGS Weekly Volcanic Activity Report
(30 December – 5 January 2010)
New activity/Unrest:
Volcano News (Source: GVP)
An explosive eruption from Galeras on 2 January prompted INGEOMINAS to raise the Alert Level. An ash plume rose to an altitude of 12 km (39,400 ft) a.s.l. Ejected incandescent blocks ignited fires.
Nyamuragira erupted on 2 January from a fissure on the SE flank. By 3 January, the lava flow had traveled 4.6 km and had burned about 10 hectares of forest.
On 1 January, an ash plume from Tungurahua rose to an altitude of 5.9 km (19,500 ft) a.s.l. and drifted NW. Slight ashfall was reported the next day in Manzano. On 3 and 4 January, incandescent blocks were ejected from the crater.
On 5 January, OVSICORI-UNA reported that an eruption from Turrialba produced ashfall in local areas, particularly in areas to the SW. (SOURCE: GVP)
Ongoing Activity
Barren Island, Andaman Is; Chaitén, Southern Chile; Karymsky, Eastern Kamchatka; Kilauea, Hawaii (USA); Kliuchevskoi, Central Kamchatka (Russia); Nevado del Huila, Colombia; Rabaul, New Britain; Sakura-jima, Kyushu; Sangay, Ecuador; Santa María, Guatemala; Shiveluch, Central Kamchatka (Russia); Soufrière Hills, Montserrat; Suwanose-jima, Ryukyu Islands (Japan).
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.
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Posted in Rinjani, Tungurahua, Turrialba, volcanism, volcano | Tagged: Galeras, Mayon, Nyamuragira, Piton de la Fournaise, volcanic activity, Volcanic Activity Report | 1 Comment »
Posted by feww on January 3, 2010
Galeras volcano on the Colombia border with Ecuador erupted Saturday
The tephra eruption prompted authorities to evacuated the usual 8,000 residents from the hazard zones near the volcano.
Galeras volcano photo taken during an episode of unrest on December 12, 2009. Credit: Ingeominas
Galeras seen in this aerial photo (Undated). Source: Alaska Earthquake Information center. Image may be subject to copyright.
Currently the most active volcano in Colombia, the 4,276-meter-high volcano’s first historical eruption occurred on December 7, 1580. The volcano resumed activity in 1988 after 10 years of dormancy. It erupted in 1993, killing nine people, three tourists and six scientists who had descended into the volcano’s crater to conduct tests.
There were no reported casualties after Saturday eruption.
In June 2009 FEWW forecast that
AND it hasn’t disappointed yet!
Eight of Colombia’s 15 volcanoes have erupted in the last 100 years, and three of them since 1990: Galeras, Nevado del Huila, and Nevado del Ruiz.
An explosive eruption ruptured the summit of Nevado del Ruiz on November 13, 1985, spewing about 20 million cubic meters of volcanic ash and rocks into the air. Forty-meter thick lahars traveling at velocities of up to 50 kilometers per hour destroyed the town of Armero 74 km away from the explosion crater, killing more than 23,000 people. [Source: USGS]
Galeras activity in 2009
- 14 February 19:11 an eruption spewed ash SO2 and other and volcanic gases. (Red Alert, Level I). [Pasto was covered in ash, 8,000 people evacuated.]
- 20 February 07:05 spewed ashes. (Red Alert, Level I).
- 12 March 19:30, and 13 March 15:55 explosions were recorded (Orange Alert, Level II ).
- 13 March 15:55, eruption occurred spewing gas and hot ashes at 16:34 further emission was recorded. (Orange Alert, Level II).
- 24 April 07:32, two explosions were recorded. (Orange Alert, Level II).
- 29 April monitors recorded increase in seismic activity. (Orange Alert, Level II).
- 11 May 11:58, tectonic venting. (Orange Alert, Level II).
- 17 May 21:40, seismic activity recorded. (Orange Alert, Level II).
- 11 December 2001 Galeras Alert Level Raised to “Orange”
For other episodes see:
For more information see:
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Posted in Colombia volcanoes, Galeras activity, Galeras Erupts, Galeras Volcano, volcano | Tagged: colombia, Galeras, Galeras activity in 2009, Nevado del Ruiz, Pasto, tephra eruption | 1 Comment »
Posted by feww on December 17, 2009
VoW: Mayon
We would have liked to reprint a striking image of Mayon Volcano taken from space, and all that NASA had made available as of posting was this truly disappointing “turn-of-the-satellite” image:
Mt Mayon. Image Source: NASA. Click image to enlarge.
Click here for larger, but not necessarily any less disappointing image.
For recent information on Mayon click links below:
SI / USGS Weekly Volcanic Activity Report
(2 December – 8 December 2009)
New activity/Unrest:
Volcano News (Source: GVP)
- According to news articles, PHIVOLCS reported that on 14 December incandescence emanated from the lava dome in Mayon’s summit crater and incandescent material traveled as far as 3 km down the S and SE flanks. At least five minor explosions were detected by the seismic network.
- According to a news article, INETER reported that an explosion of ash and gas from Concepción on 11 December produced a plume that rose 150 m above the crater.
- OVPDLF reported that on 14 December an eruption from Piton de la Fournaise was preceded by a seismic crisis and summit deformation. Sub-parallel fissures along the rim of Dolomieu crater fed lava flows on the S slope.
Ongoing Activity
Chaitén, Southern Chile; Dukono, Halmahera; Fuego, Guatemala; Karymsky, Eastern Kamchatka; Kilauea, Hawaii; Kliuchevskoi, Central Kamchatka (Russia); Manam, Northeast of New Guinea (SW Pacific); Nevado del Huila, Colombia; Pacaya, Guatemala; Rabaul, New Britain; Sakura-jima, Kyushu; Santa María, Guatemala; Shiveluch, Central Kamchatka (Russia); Suwanose-jima, Ryukyu Islands (Japan).
Related Links:
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Posted in volcano, Volcano Hazard, volcano images, Volcano Status, Volcano Watch Weekly | Tagged: Concepción, Galeras, Mayon, Piton de la Fournaise, Soufrière Hills | Leave a Comment »
Posted by feww on December 3, 2009
SI / USGS Weekly Volcanic Activity Report
(25 November – 1 December 2009)
New activity/Unrest:
FEWW JUNE 2009 FORECAST:
Volcano News (Source: GVP)
The Vanuatu Geohazards Observatory reported that a large explosion from Gaua’s Mount Garat on 18 November was followed by high dense ash plumes. An explosion that caused ashfall in inhabited areas on 26 November prompted the evacuation of more than 300 people.
MVO reported that during 20-27 November activity from the Soufrière Hills lava dome continued at a high level; lava extrusion shifted from the W side of the lava dome to the summit region. On 24 November there was a period of 120 minutes of continuous pyroclastic flow activity, followed by 90 minutes of semi-continuous activity. On 26 November, a pyroclastic flow that descended the Tar River valley was caused by collapse of part of the old, pre-2009 lava dome.
Ongoing Activity:
Chaitén, Southern Chile; Dukono, Halmahera (Indonesia); Fuego, Guatemala; Karymsky, Eastern Kamchatka (Russia); Kilauea, Hawaii; Kliuchevskoi, Central Kamchatka (Russia); Nevado del Huila, Colombia; Rabaul, New Britain; Sakura-jima, Kyushu (Japan); Sangay, Ecuador; Shiveluch, Central Kamchatka (Russia); Soufrière Hills, Montserrat; Suwanose-jima, Ryukyu Islands (Japan).
Related Links:
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FEWW Volcanic Activity Forecast
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Recent Posts on Chaitén:
Posted in volcanic eruption, volcanic hazard, volcanism, volcano, volcano alert | Tagged: Chaiten, Galeras, Gaua, Karkar, Sarychev Peak, VolcanoWatch | 1 Comment »
Posted by feww on November 26, 2009
VOW: to be announced…
SI / USGS Weekly Volcanic Activity Report
(18 November – 24 November 2009)
New activity/Unrest:
Volcano News (Source: GVP)
An explosive eruption from detected by the seismic network on 20 November prompted INGEOMINAS to raise the Alert Level. Residents reported five explosions, sound waves, and incandescence from multiple areas in the crater.
During 18-24 November, HVO reported that lava flowed SE from beneath Kilauea’s Thanksgiving Eve Breakout (TEB) and rootless shield complex through a lava tube system, reaching the ocean. On 21 November, a sliver of the rim collapsed and was followed by an explosion that produced a dense brown plume that dissipated after a few minutes. Watch the video here. Source: GVP [Note: The video has .mov format and cannot be run on Windows Media Player.]
Ongoing Activity:
Batu Tara, Komba Island (Indonesia); Chaitén, Southern Chile; Karymsky, Eastern Kamchatka; Kilauea, Hawaii; Kliuchevskoi, Central Kamchatka (Russia); Pacaya, Guatemala; Popocatépetl, México; Rabaul, New Britain; Reventador, Ecuador; Sakura-jima, Kyushu; Santa María, Guatemala; Shiveluch, Central Kamchatka (Russia); Soufrière Hills, Montserrat; Suwanose-jima, Ryukyu Islands (Japan)
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Recent Posts on Chaitén:
. Tagged: Arenal, Bagana, Chaiten, Fuego, Galeras, Karymsky, Mayon
Posted in volcanic activity, volcanic hazard, volcanic unrest, volcanism, volcanoes | Tagged: Chaiten, Galeras, Karymsky, Kīlauea, Reventador, volcano | Leave a Comment »
Posted by feww on November 19, 2009
VOW: Mayon
Mayon volcano spews smoke and ash for the second time in a day, Wednesday, Nov. 11, 2009 at Legazpi, Albay province, about 340 kilometers southeast of Manila, Philippines. AP Photo/Nelson Salting. Image may be subject to copyright.
Related News and Posts:
SI / USGS Weekly Volcanic Activity Report
(11 November – 17 November 2009)
New activity/Unrest:
Volcano News (Source: GVP)
CENAPRED reported that on 14 November an ash plume from Popocatépetl rose to an altitude of 7.4 km (24,300 ft) a.s.l. During 14-17 November, steam-and-gas plumes sometimes contained ash.
INGEOMINAS reported that an overflight of Galeras on 14 November revealed thermal anomalies in the main crater measuring 110 degrees Celsius and very low rates of gas discharge.
Ongoing Activity:
Arenal, Costa Rica; Bagana, Bougainville; Chaitén, Southern Chile; Fuego, Guatemala; Karymsky, Eastern Kamchatka (Russia); Kilauea, Hawaii; Kizimen, Eastern Kamchatka; Kliuchevskoi, Central Kamchatka (Russia); Nevado del Huila, Colombia; Popocatépetl, México; Rabaul, New Britain; Reventador, Ecuador; Sakura-jima, Kyushu; Sangay, Ecuador; Santa María, Guatemala; Shiveluch, Central Kamchatka (Russia); Soufrière Hills, Montserrat; Suwanose-jima, Ryukyu Islands (Japan)
Related Links:
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Recent Posts on Chaitén:
Posted in volcanoes | Tagged: Arenal, Bagana, Chaiten, Fuego, Galeras, Karymsky, Mayon | 2 Comments »
Posted by feww on November 12, 2009
SI / USGS Weekly Volcanic Activity Report
(4 November – 10 November 2009)
New activity/Unrest:
Batur, Bali (Indonesia); Galeras, Colombia; Karangetang [Api Siau], Siau I; Mayon, Luzon; Nevado del Huila, Colombia; Piton de la Fournaise, Reunion Island; Reventador, Ecuador; San Vicente, El Salvador
GVP Volcano News:
OVPDLF reported that on 5 November a vent inside the S part of Piton de la Fournaise’s Dolomieu crater opened, following an intense seismic crisis. Within thirty minutes, a fissure on the upper SE flank propagated E and a second fissure opened on the E flank.
PHIVOLCS reported that on 11 November an explosion from Mayon’ssummit crater ejected incandescent rock fragments seen from nearby areas. Cloud cover prevented observations of an ash plume, however fieldinvestigations after the event revealed ashfall to the SW.—GVP
Ongoing Activity:
Chaitén, Southern Chile; Dukono, Halmahera; Karymsky, Eastern Kamchatka; Kilauea, Hawaii; Kliuchevskoi, Central Kamchatka (Russia); Koryaksky, Eastern Kamchatka; Rabaul, New Britain; Sakura-jima, Kyushu; Santa María, Guatemala; Shiveluch, Central Kamchatka (Russia); Soufrière Hills, Montserrat; Suwanose-jima, Ryukyu Islands (Japan)
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Posted in FEWW Volcanic Forecast, volcanism, Volcano Watch, volcanoes, VolcanoWatch Weekly | Tagged: Api Siau, Batur, Galeras, Karangetang, Mayon, Piton de la Fournaise’s Dolomieu crater, Reventador, San Vicente | 4 Comments »
Posted by feww on November 6, 2009
VOW: Kilauea
Click image to enlarge.
[Top] Activity at the west Waikupanaha ocean entry, where lava reached the ocean this past weekend, continues. The entry spans about 200 yards, with many small lava streams entering the water. [Above] On the east margin of the entry, lobes were advancing over a small black sand beach. USGS/ HVO [Dated 4 Nov 2009] Click image to enlarge.
More images:
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Thursday, November 5, 2009 7:48 AM HST (Thursday, November 5, 2009 17:48 UTC)
KILAUEA VOLCANO (CAVW #1302-01-)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Aviation Color Code: ORANGE
Aviation Color Code: ORANGE
Activity Summary for past 24 hours:
Growth and partial collapses of the Halema`uma`u Overlook vent cavity floor continued periodically obscuring and revealing the circulating lava pond surface. Sulfur dioxide emission rates from the Halema`uma`u and east rift zone vents remain elevated. Lava flows are active on the coastal plain. Lava is also flowing through tubes to the coast and entering the ocean at two locations west of Kalapana.
Past 24 hours at Kilauea summit:
The Overlook vent webcam images again showed fluctuating glow and spattering from a single elongated hole deep within the Halema`uma`u vent cavity; the rim of this hole was built progressively inward by spatter making the hole smaller until two more partial collapses occurred early this morning again revealing the circulating and spattering lava pond below. Glow from the vent was visible from Jaggar Museum overnight. This morning, a near white plume is moving southwestward and low over the Ka`u Desert. The most recent sulfur dioxide emission rate measurement was 500 tonnes/day on November 3, which is elevated above the 2003-2007 average of 140 tonnes/day. Small amounts of ash-sized tephra continued to be dropped from the plume near the vent.
Past 24 hours at the middle east rift zone vents and flow field: Magma continued to degas through Pu`u `O`o crater before erupting from the TEB vent, located 2 km to the east. The most recent sulfur dioxide emission rate measurement was 1,400 tonnes/day on November 4, which is close to the 2003-2007 average of 1,700 tonnes/day. More …
Kilauea Spews More Lava
The rift zone on the eastern slopes of Hawaii’s Kilauea Volcano has been erupting since January 1983, the longest eruption in recorded history. Pu‘u ‘O‘o and the Thanksgiving Eve Breakout vent—two centers of volcanic activity—emit steam and other gases in this natural-color satellite image. Lava currently reaches the surface at the Thanksgiving Eve Breakout vent and flows southeast (towards the lower right) through a lave tube to the ocean. Small plumes of gas reveal the path of the lava. In general, the youngest lava flows are black, and older, weathered, flows are gray or brown. Surviving vegetation is bright green. The Advanced Land Imager (ALI) on NASA’s EO-1 satellite acquired this image on November 2, 2009. NASA Earth Observatory image by Robert Simmon, using EO-1 ALI data provided by the NASA EO-1 team. Caption by Robert Simmon. Click image to enlarge.
SI / USGS Weekly Volcanic Activity Report
(28October – 3 November 2009)
New activity/Unrest:
Ebeko, Paramushir Island | Galeras, Colombia | Karangetang [Api Siau], Siau I | Manam, Northeast of New Guinea (SW Pacific) | Nevado del Huila, Colombia | Soufrière Hills, Montserrat
GVP Volcano News:
INGEOMINAS reported that on 28 October a pulse of tremor from Nevado del Huila was followed by an ash plume that rose to an altitude of 8.3 km (27,200 ft) a.s.l. On 3 November, residents of Mosoco (20 km SSW) saw collapses from the W side of the dome generate small pyroclastic flows and incandescence at night.
MVO reported that during 23-30 October seismic activity from the Soufrière Hills lava dome was at a slightly lower level that the previous week. Numerous pyroclastic flows occurred in most of the major drainage valleys and rockfalls were concentrated in the S. On 29 October, a 40-m-high spine was seen protruding from the summit. —GVP
Ongoing Activity:
Barren Island, Andaman Is | Chaitén, Southern Chile | Dukono, Halmahera | Karymsky, Eastern Kamchatka | Kilauea, Hawaii (USA) | Kliuchevskoi, Central Kamchatka (Russia) | Krakatau, Indonesia | Popocatépetl, México | Rabaul, New Britain | Sakura-jima, Kyushu | Shiveluch, Central Kamchatka (Russia) | Suwanose-jima, Ryukyu Islands (Japan)
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FEWW Volcanic Activity Forecast
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Recent Posts on Chaitén:
Posted in FEWW Volcanic Forecast, volcanic activity, volcanism, Volcano Watch, volcanoes, VolcanoWatch Weekly | Tagged: Barren Island, Chaiten volcano, Dukono, Ebeko, Galeras, Karangetang, Karymsky, Krakatau, Manam, Montserrat, Nevado del Huila, Sakura-jima, Soufrière Hills, Suwanose-jima | Leave a Comment »
Posted by feww on October 9, 2009
VOW: Ambrym
Destructive acid rain caused by eruption
According to press reports, an eruption from Benbow Crater occurred on 10 February [1979.] Gases from the eruption caused acid rainfall on the SW portion of Ambrym Island, destroying most vegetation within 24 hours, contaminating water supplies, and burning some inhabitants. Jean-Luc Saos, Director of Mineral Resources for the New Hebrides government, reported a high concentration of HCl and sulfur compounds in the volcanic gases. Although heavy ashfalls have occurred in the area in the past, this is the first report of acid rains. More …
View of the Marum cone at Ambrym looking SW, 7 June 2007. Incandescence from the active lava lakes can be seen reflected in the clouds (left). Courtesy of Steven Clegg.
Lava lake inside Mbwelesu crater within Marum cone at Ambrym, 7 June 2007. Courtesy of Steven Clegg.
A hazy layer of vog—volcanic fog—overlies Malekula and a few other islands of the Vanuatu archipelago in this natural-color satellite image. The source of the vog is Ambrym, a volcano in the southeast (lower right) corner of this scene. The haze extends over the Coral Sea several hundred kilometers to the northwest. Ambrym emits sulfur dioxide—the gas responsible for the formation of vog— intermittently. (Kilauea Volcano has recently affected the residents of Hawaii with similar vog emissions.) The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Aqua satellite acquired this natural-color image on October 6, 2009. [Large earthquake measuring up to 8.2 Mw struck Vanuatu region on October 7, 2009 at 22:03 UTC. FEWW] NASA image by Jeff Schmaltz, MODIS Rapid Response, NASA Goddard Space Flight Center. The Rapid Response Team provides twice-daily images of this region. Caption by Robert Simmon.
Ash plume from Ambrym Volcano, Vanuatu October 4, 2004, 23:00 UTC. Source: NASA/MODIS Rapid Response System.
View into the Mbwelesu crater on the Marum cone at Ambrym, captured 7 September 2008. Lava can be seen through two gaps in the crusted-over lava lake (enlarged insets). Courtesy of Arnold Binas.
Ambrym, a large basaltic volcano with a 12-km-wide caldera, is one of the most active volcanoes of the New Hebrides arc. A thick, almost exclusively pyroclastic sequence, initially dacitic, then basaltic, overlies lava flows of a pre-caldera shield volcano. The caldera was formed during a major plinian eruption with dacitic pyroclastic flows about 1900 years ago. Post-caldera eruptions, primarily from Marum and Benbow cones, have partially filled the caldera floor and produced lava flows that ponded on the caldera floor or overflowed through gaps in the caldera rim. Post-caldera eruptions have also formed a series of scoria cones and maars along a fissure system oriented ENE-WSW. Eruptions have apparently occurred almost yearly during historical time from cones within the caldera or from flank vents. However, from 1850 to 1950, reporting was mostly limited to extra-caldera eruptions that would have affected local populations. Caption: GVP
Ambtym
Country: Vanuatu
Subregion Name: Vanuatu
Volcano Number: 0507-04=
Volcano Type: Pyroclastic shield
Volcano Status: Historical
Last Known Eruption: 2009
Summit Elevation: 1334 m 4,377 feet
Latitude: 16.25°S 16°15’0″S
Longitude: 168.12°E 168°7’0″E
SI /USGS Weekly Volcanic Activity Report
(30 September – 6 October 2009)
New activity/Unrest:
News From GVP:
On 29 September, people living in Chaitén town, 10 km SW of Chaitén’s Domo Nuevo 1 (Phase I) and Domo Nuevo 2 (Phase II) lava-dome complex, noticed that the eruption column was larger. Scientists conducted an overflight and saw a third lava dome (Phase III) in the SW area of the complex, which had filled up a depression left by a collapse on 19 February.
According to news articles from 2 October, increased seismicity at Gaua was detected during the previous two weeks. Villagers living nearby reported ashfall and sulfur odors.
An explosive eruption from Galeras on 30 September prompted INGEOMINAS to raise the Alert Level. An ash plume rose to an approximate altitude of 12.3 km (40,400 ft) a.s.l. and drifted E, then N. —GVP
Ongoing Activity:
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FEWW Volcanic Activity Forecast
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Posted in California volcanoes, ecuador, FEWW Volcanic Activity Forecast, Hawaii, island of Java, Kīlauea, Langila, Mexico, New Britain, Popocatépetl, Rabaul, Reventador, Sangay, volcanic hazard, volcanism, volcano services, volcanoes | Tagged: acid rain, Ambrym, Banks Islands, Central Kamchatka, Chaiten, Chuginadak Island, Cleveland, colombia, Eastern Kamchatka, Galeras, Gaua, Karymsky, Kliuchevskoi, Kyushu, Montserrat, Sakura-jima, Shiveluch, Soufrière Hills, southern Chile | 1 Comment »
Posted by feww on June 11, 2009
Volcanic Activity Report: 3 June – 9 June 2009
Source: Global Volcanism program (GVP) – SI/USGS Weekly Volcanic Activity Report
New activity/unrest:
FEWW Volcanic Activity Forecast:
FEWW Moderators forecast new volcanic activity/ unrest at 50 or more volcanoes throughout the rest of 2009.
List of the volcanoes to watch this year [and in 2010] includes:
Barcena (0.8), Socorro (0.8), Curacoa (0.99), Atitlán (0.65), Vesuvius (>0.6), Bazman (0.6), Mount Shasta (>0.5), Kaba (>0.5), Bandai (>0.5), Eastern Gemini Seamount or Mathew Island volcano (0.65), Fonualei (0.65), Mount Rainier (>0.5), Jan Mayen (>0.6), Thule (0.4), Sibayak (>0.5), Volcán Guallatiri (0.65), Taveuni (>0.4), two or more volcanoes on the island of Hokkaido (0.65), E-san (0.7), Oshima-Oshima (0.7), Komaga-take (0.65)… Protector Shoal (0.75), Thule Islands (0.7), Tina Kula (0.8)
Figure in the brackets indicate probability of activity/unrest.
For other forecasts see also:
Ongoing Activity:
- Batu Tara, Komba Island (Indonesia)
- Chaitén, Southern Chile
- Dukono, Halmahera (North Maluku province of Indonesia)
- Fuego, Guatemala
- Karymsky, Eastern Kamchatka (Russia)
- Kelut, Eastern Java (Indonesia)
- Kilauea, Hawaii (USA)
- Llaima, Central Chile
- Manam, Northeast of New Guinea (SW Pacific)
- Pacaya, Guatemala
- Popocatépetl, México
- Rabaul, New Britain
- Redoubt, Southwestern Alaska
- Sakura-jima, Kyushu
- Santa María, Guatemala
- Shiveluch, Central Kamchatka (Russia)
- Tungurahua, Ecuador
- Ubinas, Perú
Latest U.S. Volcano Alerts and Updates – Local time: June 10, 2009 22:05 AKDT (June 11, 2009 0605 UTC)
-
Redoubt Activity – Color Code ORANGE : Alert Level WATCH
-
Kilauea Activity – Color Code ORANGE : Alert Level WATCH
-
Mauna Loa Activity – Color Code YELLOW : Alert Level ADVISORY
Redoubt Volcano Latest Observations
2009-06-10 19:34:49 – The 2009 eruption of Redoubt continues. The seismic activity at Redoubt remains low, but above background levels. The webcam images from DFR and the Hut show a clear view of the dome and associated steaming. AVO continues to monitor Redoubt’s activity 24/7. (Source: AVO)
Related Links:
Posted in Indonesia, Redoubt Volcano, volcanic activity, volcanism, volcanoes | Tagged: Galeras, Karangetang, Sangeang Api, Slamet Volcanowatch, weekly Volcano news | Leave a Comment »
Posted by feww on March 26, 2009
Volcanic Activity Report: 18 March – 24 March 2009
Source: SI / USGS Weekly Volcanic Activity Report
New activity/unrest:
VoW: Fonualei, Tonga Islands (SW Pacific)
- Country: Tonga
- Subregion Name: Tonga Islands
- Volcano Type: Stratovolcano
- Volcano Status: Historical
- Last Known Eruption: 1957
- Summit Elevation: 180 m (591 feet)
- Latitude: 18.02°S (18°1’0″S)
- Longitude: 174.325°W (174°19’30″W)
- Source: USGS
Fonualei: Seen from the NE, Fonualei volcano has an upturned saucer profile. The small, less than 2-km-wide island of Fonualei contains a fumarolically active crater, which is breached to the SW with a fresh lava flow extending to the sea and forming a rugged shoreline. Blocky lava flows from a central pyroclastic cone have reached the sea through notches in the rim of a small caldera. Eruptions at Fonualei have been recorded since 1791, with the two largest taking place in October 1846 and July 1847. [In 1847,] explosive eruptions produced large pumice rafts, and ashfall damaged crops on the island of Vavua (56 km away) and fell on vessels up to 950 km distant. In 1939 explosive and effusive activity occurred from summit and flank vents, and water spouts were reported 1.6 km SE of the island. Photo by Paul Taylor (published in Taylor and Ewart, 1997). Caption: GVP
FEWW Comment: Fonualei may be one of the next volcanoes in the Tonga region to erupt in the next 30-90 days.
Ongoing Volcanic Activity:
- Batu Tara, Komba Island (Indonesia)
- Chaitén, Southern Chile
- Dempo, Sumatra (Indonesia)
- Etna, Sicily (Italy)
- Gamkonora, Halmahera
- Karymsky, Eastern Kamchatka
- Kilauea, Hawaii (USA)
- Kuchinoerabu-jima, Ryukyu Islands (Japan)
- Lewotobi, Flores Island (Indonesia)
- Okmok, Fox Islands
- Popocatépetl, México
- Rabaul, New Britain (PNG)
- Sakura-jima, Kyushu (Japan)
- Shiveluch, Central Kamchatka (Russia)
- Soufrière Hills, Montserrat (Caribbean sea)
- Tungurahua, Ecuador
- Ubinas, Perú
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.
Elevated Volcanic Activity in the US [Source: USGS]
Mar 25, 2009 at 21:08:47 PDT [PDT is 7 hours behind of Coordinated Universal Time,UTC]
The following U.S. volcanoes are known to be above normal background (elevated unrest or eruptions) or have shown activity that warranted an Information Release (for example, an earthquake swarm).
Volcano Alert Levels & Aviation Color Codes defined at http://volcanoes.usgs.gov/activity/alertsystem.
Volcano Hazards
Redoubt: Alert Level=WATCH. Aviation Color Code=ORANGE. As of Mar 25, 2009, 13:35 ADT
- No explosions in last 36 hours and seismicity has declined. Possible lava dome growth at the summit. Explosions could resume without much warning.
(Change to current status occurred on Mar 25, 2009 13:35 ADT from Alert Level WARNING and Aviation Color Code RED )For more information see http://www.avo.alaska.edu/activity/Redoubt.php
Kilauea: Alert Level=WATCH. Aviation Color Code=ORANGE. As of Mar 25, 2009, 07:53 HST
- Elevated SO2 and some tephra from Halema`uma`u vent; elevated SO2 from Pu`u `O`o vent; lava in tubes to ocean. (Change to current status occurred on Jul 2, 2007 20:09 HST from Alert Level ADVISORY and Aviation Color Code YELLOW ). For more information see http://volcanoes.usgs.gov/hvo/activity/kilaueastatus.php
Cleveland: Alert Level=ADVISORY. Aviation Color Code=YELLOW. As of Mar 24, 2009, 12:46 ADT
Mauna Loa: Alert Level=ADVISORY. Aviation Color Code=YELLOW. As of Mar 2, 2009, 15:05 HST
Program Webcams page links to webcams at 19 of the 169 active volcanoes in the U-S.
Posted in ashfall, Chaiten, Fonualei, Kīlauea, volcanism | Tagged: Galeras, Hunga Tonga-Hunga Ha'apai, Popocatépetl, Redoubt | Leave a Comment »
Posted by feww on February 15, 2009
Galeras forceful eruption prompts evacuation
Galeras, a stratovolcano, located near the regional capital city of Pasto in southwest Colombia and close to the border with Ecuador, erupted again on Saturday, prompting the authorities to issue a “red alert” for the area. An evacuation order was issued for about 8,000 people who live in the vicinity of the volcano.
Galeras, seen from the city of Pasto. Credit: Henry Ernesto Escobar Meneses
The Colombia Institute for Geology and Mines said the blast occurred at about 12:10 UTC Sunday. No fatalities or injuries were reported.
According to the local government “large amount of ash” was falling on Pasto.
The 4,270-meter volcano has been an active volcano for about a million years and is considered the most active volcano in Colombia. In 1991 it was designated a Decade Volcano due to its proximity to the city of Pasto.
Galeras is seen here from the south on March 17, 1989, with steam clouds pouring from vents on the large central cone near the back headwall of the caldera, whose south rim forms the ridge in the foreground. Major explosive eruptions since the mid Holocene have produced widespread tephra deposits and pyroclastic flows that swept all but the southern flanks. Photo by Norm Banks (U.S. Geological Survey). Caption: GVP.
On January 14, 1993, during a Decade Volcano conference in Pasto, a group of unfortunate scientists launched an impromptu expedition to the volcano’s crater. Shortly after their arrival, Galeras erupted killing six scientists and three others.
In the 20th century Galeras underwent several episodes of unrest including those in December of 1923, October of 1924, October of 1932, February of 1936, July of 1947, January of 1950, February 1974, February of 1989, January of 1990, January of 1993, March of 2000, June of 2002, July of 2004, November of 2005, October of 2007, and several episodes in 2008 and 2009.
UPDATE: February 20, 2009
Authorities in the south of Colombia are on high alert after the Galeras volcano Friday erupted again. Colombia Reports. Image may be subject to copyright.
Related Links:
Words: 300; images: 2; links: 2
Posted in Complex volcano, Decade Volcano, ecuador, Holocene, Urcunina | Tagged: colombia, Galeras, Pasto, stratovolcano, volcano red alert | 3 Comments »
Posted by feww on November 6, 2008
Erta Ale Erupted
Update: Nov 7, 2008 – According to the latest news bulletins, the eruption in the Erta Ale, Africa’s largest in historic times, was due to a fissure between Alu and Dalaffilla volcanoes.
Erta Ale, an active shield volcano located in the Afar Region of northeastern Ethiopia [located some 600 km from Addis Ababa,] is Ethiopia’s only active volcano. Eye witnesses said the volcano erupted late Monday. Satellite photos show the lava had covered about 300 sq km, a record area.
The volcano stands 613 meters tall, with a lava lake, one of only four in the world, at the summit. It is notable for being the longest existing lava lake, present since the early years of the twentieth century. It is located in the Danakil Depression, a desert area bordering Eritrea. The area is described as one of the hottest places on earth famed for its salt mines.
Erta Ale’s last major eruption in 2005 forced thousands of nearby residents to flee. Additional lava flow activity took place in August 2007, forcing the evacuation of hundreds and leaving two missing.
Erta Ale, Alu, Tat Ali and other Ethiopian highlands are together known as the Danakil Alps. (Sources: Addis Ababa University, various academic and news organizations, Wikipedia).
Erta Ale, an active shield volcano located in the Afar Region [northeastern] of Ethiopia in the Danakil Desert, is Ethiopia’s only active volcano. License: cc-by-sa-2.0. Credit: posted to Flickr by filippo_jean.
29 October – 4 November 2008
New Activity/Unrest:
Ongoing Activity:
- Karymsky, Eastern Kamchatka
- Kilauea, Hawaii (USA)
- Masaya, Nicaragua
- Pacaya, Guatemala
- Piton de la Fournaise, Reunion Island
- Popocatépetl, México
- Rabaul, New Britain
- Shiveluch, Central Kamchatka (Russia)
- Soufrière Hills, Montserrat
- Suwanose-jima, Ryukyu Islands (Japan)
- Tungurahua, Ecuador
- Ubinas, Perú
This Weekly Volcanic Activity Report summary is a cooperative project between the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.
Posted in Danakil Depression, Kīlauea, lava, shield volcano, Tungurahua | Tagged: Chaiten, Colima, Erta Ale, Galeras, volcanoes | Leave a Comment »
Posted by feww on September 25, 2008
17 September-23 September 2008
New Activity/Unrest:
An ash plume ejected from Bagana (right), just south of the dark-colored caldera lake of Billy Mitchell, rises into the atmosphere.
Steam clouds rise from an andesitic lava flow descending the NW flank of Bagana on April 26, 1988. The massive symmetrical lava cone, one of the most active volcanoes in Papua New Guinea, was largely constructed by an accumulation of viscous andesitic lava flows. – Photo by Wally Johnson, 1988 (Australia Bureau of Mineral Resources). Source: GVP
Elevation: 1,750 metres (5,741 feet)
Location: Bougainville, Papua New Guinea
Range: Emperor Range
Coordinates: 6.140° S 155.195° E
Type: Lava cone
Last eruption: 2008 (continuing)
Ongoing Activity:
- Chaitén, Southern Chile
- Chikurachki, Paramushir Island
- Dukono, Halmahera
- Karymsky, Eastern Kamchatka
- Kilauea, Hawaii (USA)
- Llaima, Central Chile
- Manam, Northeast of New Guinea (SW Pacific)
- Rabaul, New Britain
- Ruapehu, New Zealand
- Shiveluch, Central Kamchatka (Russia)
- Soufrière Hills, Montserrat
- Tungurahua, Ecuador
- Ubinas, Perú
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.
Related Links:
Posted in andesitic lava, Billy Mitchell, environment, explosive erruption, Rabaul, Shiveluch | Tagged: Bagana, Chaiten, Galeras, Piton de la Fournaise, Volcano Watch | 2 Comments »
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