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SI/USGS Weekly Volcanic Activity Report 8-14 September 2010 16 September 2010

Posted by admin in activity reports, Alaska, Arenal, Batu Tara, Caribbean, Chile, Cleveland, Colombia, Costa Rica, Dukono, Ecuador, Ekarma, eruptions, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Nevado del Huila, Planchón-Peteroa, Reventador, Russia, Sakura-jima, Sangay, Santa María, Shiveluch, Sinabung, Soufrière Hills, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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The Global Volcanism Program has put together a bumper Weekly Volcanic Activity Report for 8-14 September 2010. Sally Kuhn Kennert of the GVP compiled the report. Some highlights:

  • Nevado del Huila: alert level raised following increase in seismicity and gas/ash emissions
  • Soufrière Hills: several small-to-moderate pyroclastic flows descended the dome and took parts of it down with them
  • Arenal: rumbled its way through August with gas emissions, strombolian eruptions and avalanches
  • Sinabung: threw ash plumes up to 4.3-4.6 km altitude

SI/USGS Weekly Volcanic Activity Report 8-14 September 2010

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 8-14 September 2010 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Cleveland (Alaska, USA), Ekarma (Russia), Kliuchevskoi (Russia), Nevado del Huila (Colombia), Planchón-Peteroa (Chile), Santa María (Guatemala), Sinabung (Indonesia).

Ongoing activity: Arenal (Costa Rica), Batu Tara (Indonesia), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii USA), Reventador (Ecuador), Sakura-jima (Japan), Sangay (Ecuador), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan).

Note: a.s.l. = ‘above sea level’.

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Restless Cleveland back at Advisory/Yellow 14 September 2010

Posted by admin in activity reports, Alaska, Cleveland, United States.
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Alaska is not short of restless volcanoes, and Cleveland, on Chuginadak Island, is among the most restless, with frequent reports of thermal anomalies and ash emissions. In June and October 2009 there were small explosive eruptions, and this year in May-June and August-September there have been reports of occasional small ash emissions and thermal anomalies. On 26 August the Volcano Alert Level for Cleveland was raised to Advisory and the Aviation Colour Code was raised to Yellow, but the volcano was returned to Unassigned on 10 September following 10 days with no evidence of activity.

Now, however, Cleveland is rumbling again and is back at Advisory/Yellow. On 12 September the Alaska Volcano Observatory reported satellite detection of thermal anomalies (11 September) and a possible ash plume (12 September): the estimated plume height was 25,000 feet a.s.l., which is more than 7.5 km. Accordingly the alert level was raised again on 12 September.

The most recent Cleveland bulletin, issued on 13 September, reports that ‘Clouds obscure the volcano today and there are no reports of activity’.

Reports of Cleveland’s activity usually come through satellite imagery (or direct observation) as there is no real-time seismic network at the volcano.

Information
Global Volcanism Program: Cleveland – summary information for Cleveland (1101-24-)
AVO Cleveland Eruption Page – information on current activity at Cleveland
Alaska Volcano Observatory – main page for the AVO

The Volcanism Blog

SI/USGS Weekly Volcanic Activity Report 1-7 September 2010 9 September 2010

Posted by admin in activity reports, Alaska, Batu Tara, Bezymianny, Chile, Cleveland, Dukono, Ecuador, Ekarma, eruptions, Etna, Guatemala, Hawaii, Indonesia, Italy, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Manam, Pacaya, Papua New Guinea, Planchón-Peteroa, Russia, Sakura-jima, Sangay, Seulawah Agam, Shiveluch, Sinabung, United States, Villarrica, Weekly Volcanic Activity Reports.
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Another week, another Weekly Volcanic Activity Report from the volcano-watchers of the Global Volcanism Program. The report is compiled by Sally Kuhn Sennert.

  • Ekarma: continuing strong steam-and-gas emissions
  • Etna: a powerful explosion followed by ash emissions on 25 August
  • Planchón-Peteroa: an explosive eruption on 6 September
  • Kliuchevskoi: a possible eruption on 3 September

SI/USGS Weekly Volcanic Activity Report 1-7 September 2010

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 1-7 September 2010 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Ekarma (Russia), Etna (Italy), Kliuchevskoi (Russia), Manam (Papua New Guinea), Planchón-Peteroa (Chile), Seulawah Agam (Indonesia), Sinabung (Indonesia), Villarrica (Chile).

Ongoing activity: Batu Tara (Indonesia), Bezymianny (Russia), Cleveland (Alaska, USA), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii USA), Pacaya (Guatemala), Sakura-jima (Japan), Sangay (Ecuador), Santa María (Guatemala), Shiveluch (Russia).

Note: a.s.l. = ‘above sea level’.

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SI/USGS Weekly Volcanic Activity Report 25-31 August 2010 1 September 2010

Posted by admin in activity reports, Alaska, Batu Tara, Caribbean, Cleveland, Colombia, Dukono, Ecuador, Ekarma, eruptions, Galeras, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Manam, Nevado del Huila, Papua New Guinea, Reventador, Russia, Sakura-jima, Sangay, Shiveluch, Sinabung, Soufrière Hills, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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Some highlights from a very full week of volcanic activity as reported by the Global Volcanism Program (report compiled by Sally Kuhn Sennert):

  • Ekarma: a steam plume and evidence of a possible recent small eruption reported from this volcano in the Kuril Islands
  • Galeras: an eruption on 25 August, and ashfall up to 30 km from the vent
  • Sinabung: two significant eruptions cause the evacuation of 20,000 to 30,000 local residents
  • Nevado del Huila: ash emissions accompanied by tremor

SI/USGS Weekly Volcanic Activity Report 25-31 August 2010

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 25-31 August 2010 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Ekarma (Russia), Galeras (Colombia), Manam (Papua New Guinea), Sinabung (Indonesia).

Ongoing activity: Batu Tara (Indonesia), Cleveland (Alaska, USA), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii USA), Kliuchevskoi (Russia), Nevado del Huila (Colombia), Reventador (Ecuador), Sakura-jima (Japan), Sangay (Ecuador), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan).

Note: a.s.l. = ‘above sea level’.

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SI/USGS Weekly Volcanic Activity Report 9-15 June 2010 22 June 2010

Posted by admin in activity reports, Alaska, Bagana, Batu Tara, Bezymianny, Caribbean, Chile, Cleveland, Dukono, Ecuador, eruptions, Eyjafjöll, Fuego, Gaua, Guatemala, Hawaii, Iceland, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Melimoyu, Mexico, Nicaragua, Pacific, Papua New Guinea, Popocatépetl, Russia, Sakura-jima, San Cristóbal, Shiveluch, Soufrière Hills, Tungurahua, Ulawun, United States, Vanuatu, Weekly Volcanic Activity Reports.
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Some highlights from the last week of volcanic activity reported by the Global Volcanism Program:

  • Melimoyu: increased seismicity leads to heightened alert level
  • Tungurahua: daily explosions and ashfall
  • Eyjafjallajökull: earthquakes, steam plumes
  • Soufrière Hills: rockfalls and pyroclastic flows

SI/USGS Weekly Volcanic Activity Report 9-15 June 2010

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 9-15 June 2010 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Bezymianny (Russia), Cleveland (Alaska, USA), Melimoyu (Chile), Pacaya (Guatemala), San Cristóbal (Nicaragua), Sarigan (Mariana Islands), Tiatia (Russia), Tungurahua (Ecuador), Ulawun (Papua New Guinea).

Ongoing activity: Bagana (Papua New Guinea), Batu Tara (Indonesia), Dukono (Indonesia), Eyjafjallajökull (Iceland), Fuego (Guatemala), Gaua (Vanuatu), Karymsky (Russia), Kilauea (Hawaii USA), Kliuchevskoi (Russia), Popocatépetl (Mexico), Sakura-jima (Japan), Shiveluch (Russia), Soufrière Hills (Montserrat).

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SI/USGS Weekly Volcanic Activity Report 2-8 June 2010 9 June 2010

Posted by admin in activity reports, Alaska, Batu Tara, Bezymianny, Cleveland, Dukono, Ecuador, eruptions, Eyjafjöll, Guatemala, Hawaii, Iceland, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Mexico, Pacaya, Papua New Guinea, Philippines, Popocatépetl, Russia, Sakura-jima, Santa María, Shiveluch, Taal, Tungurahua, Ulawun, United States, Weekly Volcanic Activity Reports.
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Some highlights from the last week of volcanic activity reported by the Global Volcanism Program:

  • Pacaya: strombolian activity ejects material 200 m into the air
  • Taal: elevated seismicity and inflation causing concern
  • Tungurahua: explosions, ashfall, plumes up to 9 km altitude
  • Eyjafjallajökull: fluctuating tremor, fresh ashfall, plumes up to 4.5 km altitude

SI/USGS Weekly Volcanic Activity Report 2-8 June 2010

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 2-8 June 2010 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Bezymianny (Russia), Cleveland (Alaska, USA), Pacaya (Guatemala), Taal (Philippines), Tiatia (Russia), Tungurahua (Ecuador), Ulawun (Papua New Guinea).

Ongoing activity: Batu Tara (Indonesia), Dukono (Indonesia), Eyjafjallajökull (Iceland), Karymsky (Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Russia), Popocatépetl (Mexico), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Russia).

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SI/USGS Weekly Volcanic Activity Report 16-22 December 2009 23 December 2009

Posted by admin in activity reports, Alaska, Bezymianny, Caribbean, Chaitén, Chile, Cleveland, Ecuador, eruptions, Gaua, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Mayon, Pacific, Russia, Sakura-jima, San Cristóbal, Shiveluch, Soufrière Hills, Suwanose-jima, United States, Vanuatu, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 16-22 December 2009

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 16-22 December 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Bezymianny (Russia), Cleveland (Alaska, USA), Gaua (Vanuatu), Mayon (Philippines), San Cristóbal (Nicaragua).

Ongoing activity: Chaitén (Chile), Karymsky (Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Russia), Sakura-jima (Japan), Sangay (Ecuador), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan).

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SI/USGS Weekly Volcanic Activity Report 14-20 October 2009 22 October 2009

Posted by admin in activity reports, Alaska, Bagana, Batu Tara, Caribbean, Chaitén, Chile, Cleveland, Colombia, Dukono, Ebeko, Ecuador, eruptions, Gaua, Hawaii, Indian Ocean, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kizimen, Kliuchevskoi, Nevado del Huila, Pacific, Papua New Guinea, Piton de la Fournaise, Rabaul, Reventador, Russia, Sakura-jima, Shishaldin, Shiveluch, Soufrière Hills, United States, Vanuatu, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 14-20 October 2009

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 14-20 October 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Chaitén (Chile), Ebeko (Russia), Gaua (Vanuatu), Kaba (Indonesia), Kizimen (Russia), Kliuchevskoi (Russia), Nevado del Huila (Colombia), Piton de la Fournaise (Réunion), Reventador (Ecuador), Soufrière Hills (Montserrat).

Ongoing activity: Bagana (Papua New Guinea), Batu Tara (Indonesia), Cleveland (Alaska, USA), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Rabaul (Papua New Guinea), Sakura-jima (Japan), Sangay (Ecuador), Shishaldin (Alaska, USA), Shiveluch (Russia).

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Alert levels lowered at Galeras and Cleveland 8 October 2009

Posted by admin in activity reports, Alaska, Cleveland, Colombia, Galeras, United States.
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Following the recent bursts of activity at Alaska’s Cleveland volcano and Galeras volcano in Colombia, things have quietened down and the alert levels for both volcanoes have been reduced by their respective observatories.

At Galeras, the INGEOMINAS Observatorio Vulcanológico y Sismológico de Pasto lowered the alert level to Yellow, ‘ Changes in the behaviour of the volcanic activity’, on 6 October. The level had already been lowered from Red to Orange on 1 October, following the eruption of 30 September.

Meanwhile, the 2 October eruption of Cleveland volcano on the Aleutian island of Chuginadak caused the Alaska Volcano Observatory to raise the alert level to Orange/Watch. There has been no eruptive activity since that brief outburst, and the AVO lowered the alert level to Yellow/Advisory on 5 October.

Information
Global Volcanism Program – Galeras – summary information for Galeras (1501-08=)
Observatorio Vulcanológico y Sismológico de Pasto – Pasto volcanological observatory main page
Global Volcanism Program: Cleveland – summary information for Cleveland (1101-24-)
AVO Cleveland Eruption Page – information on current activity at Cleveland

The Volcanism Blog

SI/USGS Weekly Volcanic Activity Report 30 September – 6 October 2009 8 October 2009

Posted by admin in activity reports, Alaska, Batu Tara, Caribbean, Chaitén, Chile, Cleveland, Colombia, Dukono, Ecuador, eruptions, Galeras, Gaua, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Mexico, Pacific, Papua New Guinea, Popocatépetl, Rabaul, Reventador, Russia, Sakura-jima, Sangay, Shiveluch, Soufrière Hills, Suwanose-jima, United States, Vanuatu, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 30 September to 6 October 2009

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 30 September to 6 October 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Chaitén (Chile), Cleveland (Alaska, USA), Galeras (Colombia), Gaua (Vanuatu), Karymsky (Russia), Kliuchevskoi (Russia), Sakura-jima (Japan), Shiveluch (Russia), Soufrière Hills (Montserrat).

Ongoing activity: Batu Tara (Indonesia), Dukono (Indonesia), Kilauea (Hawaii, USA), Langila (Papua New Guinea), Popocatépetl (México), Rabaul (Papua New Guinea), Reventador (Ecuador), Sangay (Ecuador), Suwanose-jima (Japan).

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