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SI/USGS Weekly Volcanic Activity Report, 5-11 January 2011 13 January 2011

Posted by admin in activity reports, Bulusan, Caribbean, Dukono, Ecuador, eruptions, Etna, Fuego, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kizimen, Manam, Merapi, Nicaragua, Pacaya, Reventador, Russia, Sakura-jima, San Cristóbal, Santa María, Shiveluch, Soufrière Hills, Suwanose-jima, Tungurahua, United States, Weekly Volcanic Activity Reports.
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Here is the Weekly Volcanic Activity Report covering 5 to 11 January 2010, issued by the Smithsonian Institution and United States Geological Survey and compiled by Sally Kuhn Sennert. Some selected highlights:

  • Etna: still restless, with weak emissions, strombolian activity and degassing
  • Kizimen: eruptive activity continues with continuous emissions to 6-8 km a.s.l. and ashfall
  • Fuego: explosions, incandescence, ash plumes and ashfall
  • Merapi: lahars cause floods and damage on Merapi’s flanks

The maps accompanying this report will be available shortly – apologies for the delay.

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 5-11 January 2011 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: Etna (Italy), Kizimen (Russia), Manam (Papua New Guinea).

Ongoing activity: Bulusan (Philippines), Dukono (Indonesia), Fuego (Guatemala), Karymsky (Russia), Kilauea (Hawaii, USA), Merapi (Indonesia), Pacaya (Guatemala), Reventador (Ecuador), Sakura-jima (Japan), San Cristóbal (Nicaragua), Santa María (Guatemala), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tungurahua (Ecuador).

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SI/USGS Weekly Volcanic Activity Report, 6-12 October 2010 14 October 2010

Posted by admin in activity reports, Arenal, Argentina, Batu Tara, Caribbean, Chile, Costa Rica, Dukono, Ecuador, eruptions, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Piton de la Fournaise, Planchón-Peteroa, Poás, Reventador, Russia, Sakura-jima, Sangay, Shiveluch, Soufrière Hills, United States, Weekly Volcanic Activity Reports.
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The Weekly Volcanic Activity Report for 6-12 October 2010 is compiled by Sally Kuhn Kennert and published by the Global Volcanism Program. Some selected highlights:

  • Piton de la Fournaise: continuing high level of activity, with elevated seismicity and summit inflation
  • Planchón-Peteroa: plumes rising to altitudes between 3 and 6 km a.s.l.
  • Poás: phreatic eruptions throw material tens of metres above the surface of the crater lake

SI/USGS Weekly Volcanic Activity Report 6-12 October 2010

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 29 September – 5 October 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: Piton de la Fournaise (Réunion Island), Planchón-Peteroa (Chile), Reventador (Ecuador).

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

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SI/USGS Weekly Volcanic Activity Report, 29 September – 5 October 2010 7 October 2010

Posted by admin in activity reports, Bagana, Batu Tara, Caribbean, Chile, Colombia, Dukono, Ecuador, eruptions, Fuego, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Mexico, Nevado del Huila, Nevado del Ruiz, Pacaya, Papua New Guinea, Piton de la Fournaise, Planchón-Peteroa, Popocatépetl, Reventador, Russia, Sakura-jima, Sarychev Peak, Shiveluch, Soufrière Hills, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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The Weekly Volcanic Activity Report for 29 September to 5 October 2010 is compiled by Sally Kuhn Kennert and published by the Global Volcanism Program. Some selected highlights:

  • Nevado del Huila: ash emissions reported at an altitude of 7.6 km
  • Nevado del Ruiz: increased seismicity, deformation and geochemical changes causing concern
  • Kilauea: a new breakout lava flow causes fires
  • Sarychev Peak: a diffuse ash plume reported

SI/USGS Weekly Volcanic Activity Report 29 September - 5 October 2010

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 29 September – 5 October 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: Nevado del Huila (Colombia), Nevado del Ruiz (Colombia), Piton de la Fournaise (Réunion Island), Planchón-Peteroa (Chile), Reventador (Ecuador).

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

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SI/USGS Weekly Volcanic Activity Report, 22-28 September 2010 30 September 2010

Posted by admin in activity reports, Alaska, Caribbean, Chile, Cleveland, Dukono, Ecuador, eruptions, Hawaii, Indian Ocean, Indonesia, Japan, Kamchatka, Karangetang, Karymsky, Kilauea, Kliuchevskoi, Merapi, Piton de la Fournaise, Planchón-Peteroa, Reventador, Russia, Sakura-jima, Shiveluch, Sinabung, Soufrière Hills, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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Here is the Weekly Volcanic Activity Report for 22-28 September 2010, published by the Global Volcanism Program and compiled by Sally Kuhn Kennert. Some highlights:

  • Merapi: increased seismicity and inflation detected
  • Piton de la Fournaise: significant increase in seismic activity – signs that eruption is imminent
  • Reventador: three seismic events including episodes of tremor detected

SI/USGS Weekly Volcanic Activity Report 22-28 September 2010

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 22-28 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: Karangetang [Api Siau] (Indonesia), Kliuchevskoi (Russia), Merapi (Indonesia), Piton de la Fournaise, Reunion Island | Planchón-Peteroa, Central Chile-Argentina border | Sinabung, Sumatra (Indonesia).

Ongoing activity: Cleveland (Alaska, USA), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Reventador (Ecuador), Sakura-jima (Japan), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan).

Note: a.s.l. = ‘above sea level’.

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Increased activity at Reventador 29 September 2010

Posted by admin in activity reports, Ecuador, Reventador.
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Ecuador’s Instituto Geofísico (IG) is reporting increased activity at Reventador, with an increase in seismicity from ‘low’ to ‘moderate’, episodes of tremor, and a number of small explosions having been observed.

In a special bulletin (PDF) issued yesterday, the IG reports that ‘three pulses of activity’ were recorded on the morning of 27 September: a pulse of harmonic tremor from 07:05 to 08:43 (all times are local), an episode of tremor for 30 minutes from 09:07 with higher amplitude than the first pulse, and which was associated with a grey plume of water vapour with a small amount of ash that rose 400-500 metres above the summit; and a third pulse which began at 09:49 and lasted for 17 minutes and produced a grey plume of water vapour with moderate ash content, which reached higher than 1 km above the summit. Washington VAAC has issued four ash advisories reporting ‘possible ash emissions’ from Reventador moving north-west from the volcano.

UPDATE. Erik has more information over at Eruptions: Increased activity at El Reventador in Ecuador.

News
Se incrementa actividad de volcán en EcuadorEl Nuevo Herald, 28 September 2010

Information
Global Volcanism Program: Reventador – summary information for Reventador (1502-01=)
Instituto Geofísico – Geophysical Institute of Ecuador

The Volcanism Blog

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

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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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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

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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 17-23 February 2010 25 February 2010

Posted by admin in activity reports, Africa, Bagana, Caribbean, Ecuador, eruptions, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Ol Doinyo Lengai, Papua New Guinea, Reventador, Russia, Sangay, Shiveluch, Soufrière Hills, Suwanose-jima, Talang, Tanzania, Tungurahua, Ulawun, United States, Weekly Volcanic Activity Reports.
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Just some of the notable volcanic activity reported at the Global Volcanism Program for the last week:

  • Ol Doinyo Lengai – steam emissions and fresh lava flows observed at Tanzania’s unique carbonate volcano
  • Kliuchevskoi – continuing lava flows, phreatic and strombolian activity
  • Tungurahua – continuing explosions, ashfall and lahars

SI/USGS Weekly Volcanic Activity Report 17-23 February 2010

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 17-23 February 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: Ol Doinyo Lengai (Tanzania), Reventador (Ecuador), Soufrière Hills (Montserrat), Ulawun (Papua New Guinea).

Ongoing activity: Bagana (Papua New Guinea), Karymsky (Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Russia), Sakura-jima (Japan), Sangay (Ecuador), Shiveluch (Russia), Suwanose-jima (Japan), Talang (Indonesia), Tungurahua (Ecuador).

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SI/USGS Weekly Volcanic Activity Report 18-24 November 2009 26 November 2009

Posted by admin in activity reports, Batu Tara, Caribbean, Chaitén, Chile, Colombia, Ecuador, eruptions, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Mexico, Pacaya, Papua New Guinea, Popocatépetl, Rabaul, Reventador, Russia, Sakura-jima, Santa María, Sarychev Peak, Shiveluch, Soufrière Hills, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 18-24 November 2009

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 18-24 November 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: Galeras (Colombia), Sarychev Peak (Russia).

Ongoing activity: Batu Tara (Indonesia), Chaitén (Chile), Karymsky (Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Russia), Pacaya (Guatemala), Popocatépetl (Mexico), Rabaul (Papua New Guinea), Reventador (Ecuador), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan).

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SI/USGS Weekly Volcanic Activity Report 11-17 November 2009 19 November 2009

Posted by admin in activity reports, Arenal, Bagana, Caribbean, Chaitén, Chile, Colombia, Costa Rica, Ecuador, eruptions, Fuego, Galeras, Guatemala, Hawaii, Japan, Kamchatka, Karymsky, Kilauea, Kizimen, Kliuchevskoi, Mayon, Mexico, Nevado del Huila, Papua New Guinea, Popocatépetl, Rabaul, Reventador, Russia, Sakura-jima, Sangay, Santa María, Shiveluch, Soufrière Hills, Suwanose-jima, United States.
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SI/USGS Weekly Volcanic Activity Report 11-17 November 2009

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 11-17 November 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: Galeras (Colombia), Mayon (Philippines).

Ongoing activity: Arenal (Costa Rica), Bagana (Papua New Guinea), Chaitén (Chile), Fuego (Guatemala), Karymsky (Russia), Kilauea (Hawaii, USA), Kizimen (Russia), Kliuchevskoi (Russia), Nevado del Huila (Colombia), Popocatépetl (Mexico), Rabaul (Papua New Guinea), Reventador (Ecuador), Sakura-jima (Japan), Sangay (Ecuador), Santa María (Guatemala), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan).

Note: a.s.l. = ‘above sea level’.

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