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Smithsonian/USGS Weekly Volcanic Activity Report 22-28 February 2012 1 March 2012

Posted by admin in activity reports, Alaska, Bezymianny, Canary Islands, Chile, Cleveland, Costa Rica, Ecuador, eruptions, Guatemala, Hawaii, Hierro, Japan, Kamchatka, Kanaga, Karymsky, Kilauea, Kizimen, Mexico, Popocatépetl, Puyehue, Russia, Sakura-jima, Santa María, Shiveluch, Spain, Tungurahua, United States, Weekly Volcanic Activity Reports.
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The latest Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report has been published by the Global Volcanism Program, covering the week 22 February to 28 February 2012. The report is compiled by Sally Kuhn Sennert. Some of the highlights:

  • Rincón de la Vieja: two eruptions from Rincón de la Vieja’s active crater
  • Tungurahua: moderate activity continues, with ashfall, incandescence, steam-and-ash plume
  • Puyehue-Cordón Caulle: low-level eruptive activity continues, with lava flows and ash plumes
  • Santa María: explosions produced 0.6-1.3 km plumes and ashfall, pyroclastic flows reported

SI/USGS Weekly Volcanic Activity Report 22-28 February 2012

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 22-28 February 2012 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), Kanaga (Alaska, USA), Rincón de la Vieja (Costa Rica), Tungurahua (Ecuador).

Ongoing activity: Bezymianny (Russia), Hierro (Canary Islands), Karymsky (Russia), Kilauea (Hawaii, USA), Kizimen (Russia), Popocatépetl (Mexico), Puyehue-Cordón Caulle (Chile), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Russia).

Note: ‘a.s.l.’ = ‘above sea level’.

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Smithsonian/USGS Weekly Volcanic Activity Report 29 June – 5 July 2011 7 July 2011

Posted by admin in activity reports, Africa, Batu Tara, Chile, Dukono, Eritrea, eruptions, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kirishima, Kizimen, Kliuchevskoi, Lokon-Empung, Nabro, Philippines, Puyehue, Sakura-jima, Santa María, Shiveluch, Soputan, Taal, United States, Weekly Volcanic Activity Reports.
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Here is the latest Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report which covers the week 29 June – 5 July 2011, and is compiled by Sally Kuhn Sennert. Some of the highlights:

  • Kliuchevskoi: eruption produces a plume to 7 km altitude
  • Nabro: lava flows remain hot, brown ash plume rising from vent
  • Puyehue-Cordón Caulle: eruption continues, with active lava flows, and low white/grey plumes
  • Soputan: an apparent strombolian eruption produced 6 km plume and ashfall

SI/USGS Weekly Volcanic Activity Report 22-28 June 2011

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 29 June – 5 July 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: Kirishima (Japan), Kliuchevskoi (Russia), Lokon-Empung (Indonesia), Nabro (Eritrea), Puyehue-Cordón Caulle (Chile), Soputan (Indonesia).

Ongoing activity: Batu Tara (Indonesia), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Kizimen (Russia), Sakura-jima (Indonesia), Santa María (Guatemala), Shiveluch (Russia), Taal (Philippines).

Note: ‘a.s.l.’ = ‘above sea level’.

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Smithsonian/USGS Weekly Volcanic Activity Report 22-28 June 2011 4 July 2011

Posted by admin in activity reports, Africa, Ambrym, Batu Tara, Chile, Eritrea, eruptions, Fuego, Guatemala, Hawaii, Indonesia, Kamchatka, Karymsky, Kilauea, Kirishima, Kizimen, Nabro, Pacific, Planchón-Peteroa, Russia, Sakura-jima, Shiveluch, United States, Vanuatu, Weekly Volcanic Activity Reports.
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Here’s the Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report for the week 22-28 June 2011, compiled by Sally Kuhn Sennert. Some of the highlights:

  • Ambrym: degassing, occasional explosions, light ashfall
  • Nabro: eruption continues, with plumes of water vapour and sulphur dioxide, lava flows and ashfall
  • Puyehue-Cordón Caulle: eruption continues, with active lava flow, and ash clouds affecting air traffic
  • Planchón-Peteroa: ash and gas-and-steam plumes detected

SI/USGS Weekly Volcanic Activity Report 22-28 June 2011

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 22-28 June 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: Ambrym (Vanuatu), Kirishima (Japan), Nabro (Eritrea), Puyehue-Cordón Caulle (Chile).

Ongoing activity: Batu Tara (Indonesia), Fuego (Guatemala), Karymsky (Russia), Kilauea (Hawaii, USA), Kizimen (Russia), Planchón-Peteroa (Chile), Sakura-jima (Japan), Shiveluch (Russia).

Note: ‘a.s.l.’ = ‘above sea level’.

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Smithsonian/USGS Weekly Volcanic Activity Report 15-21 June 2011 23 June 2011

Posted by admin in activity reports, Africa, Batu Tara, Chile, Costa Rica, Egon, Eritrea, eruptions, Etna, Hawaii, Indonesia, Italy, Kamchatka, Karymsky, Kilauea, Nabro, Paluweh, Russia, Shiveluch, Turrialba, United States, Weekly Volcanic Activity Reports.
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The Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report, compiled by Sally Kuhn Sennert, has been issued for the week 15-21 June 2011. Some of the highlights:

  • Etna: renewed ash emissions from Bocca Nuova
  • Nabro: eruption continues, with plumes of water vapour and sulphur dioxide
  • Puyehue-Cordón Caulle: a viscous lava flow observed as eruptive activity continues
  • Turrialba: a new crater lake observed at the summit

SI/USGS Weekly Volcanic Activity Report 15-21 June 2011

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 15-21 June 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), Nabro (Eritrea), Puyehue-Cordón Caulle (Chile), Turrialba (Costa Rica).

Ongoing activity: Batu Tara (Indonesia), Egon (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Paluweh (Indonesia), Shiveluch (Russia).

Note: ‘a.s.l.’ = ‘above sea level’.

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Smithsonian/USGS Weekly Volcanic Activity Report 8-14 June 2011 16 June 2011

Posted by admin in activity reports, Africa, Aso, Batu Tara, Caribbean, Chile, Dieng Volcanic Complex, Eritrea, eruptions, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kizimen, Mayon, Nabro, Pacific, Puyehue, Russia, Sakura-jima, Shiveluch, Soufrière Hills, Tengger Caldera, United States, Vanuatu, Weekly Volcanic Activity Reports, Yasur.
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The Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report, compiled by Sally Kuhn Sennert, has been issued for the week 8-14 June 2011. Another week high in volcanic interest:

  • Kizimen: eruptive episode with ash plumes reaching 4-5 km altitude
  • Nabro: eruption following an earthquake swarm sent ash to 13.7 km altitude
  • Puyehue-Cordón Caulle: eruption continues with continuous ash emission and pyroclastic flows
  • Mayon: slight inflation detected at the summit

SI/USGS Weekly Volcanic Activity Report 8-14 June 2011

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 8-14 June 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: Aso (Japan), Dieng Volcanic Complex (Indonesia), Kizimen (Russia), Nabro (Eritrea), Puyehue-Cordón Caulle (Chile), Yasur (Vanuatu).

Ongoing activity: Batu Tara (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Mayon (Philippines), Sakura-jima (Japan), Shiveluch (Russia), Soufrière Hills (Montserrat), Tengger Caldera (Indonesia).

Note: ‘a.s.l.’ = ‘above sea level’.

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Lava lakes at Kilauea seethe and bubble (and the UK media gets in a muddle) 10 June 2011

Posted by admin in activity reports, Hawaii, Kilauea, United States.
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Halema'uma'u Crater lava lake, 2 June 2011: screen capture from Hawaiian Volcano Observatory video (USGS/HVO)

There are currently two active lava lakes at Kilauea volcano on Hawaii, one at the summit in Halema’uma’u Crater and one on the floor of Pu’u O’o Crater in the East Rift Zone of the volcano, about 25 km ESE of the summit. The Halema’uma’u lava lake has been particularly active since late May, with a rather spectacular lava flow feeding directly into the lake. This makes for some absolutely stunning images – when effusive basaltic volcanoes are in this mood, they can rival in their own way the visual drama of their more explosive silicic cousins. The Hawaiian Volcano Observatory have released a video taken on 1 June of the activity at the Halema’uma’u lava lake: the screen captures above and below come from this video (click here for the HVO page hosting the video, or here for a direct link to the .mov file).

Halema'uma'u Crater lava lake, 2 June 2011: screen capture from Hawaiian Volcano Observatory video (USGS/HVO)

Halema'uma'u Crater lava lake, 2 June 2011: screen capture from Hawaiian Volcano Observatory video (USGS/HVO)

Lava lakes are not unknown at Kilauea: a celebrated one existed for decades at the summit of the volcano, a favourite of visiting volcano artists, until it vanished during the eruption of 1924. The lava lake re-emerged at Halema’uma’u in September 2008 and has been there ever since, at varying levels and with periods of replenishment and circulation alternating with periods in which the lake has been static and crusted over. The Halema’uma’u lava lake has been formed by lava feeding into an existing crater and and forming a pond within it; the lake at Pu’u O’o is of a different type known as a perched lava lake or lava pond, where lava has been erupted from a vent or fissure and has become contained not by an existing topographic feature but within walls created by the cooling of its own margins.

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Smithsonian/USGS Weekly Volcanic Activity Report 1-7 June 2011 9 June 2011

Posted by admin in activity reports, Aso, Batu Tara, Chile, Dieng Volcanic Complex, Dukono, eruptions, Hawaii, Indonesia, Japan, Kamchatka, Karangetang, Karymsky, Kilauea, Kizimen, Kliuchevskoi, Pacific, Papua New Guinea, Popocatépetl, Puyehue, Rabaul, Russia, Sakura-jima, Shiveluch, United States, Vanuatu, Villarrica, Weekly Volcanic Activity Reports, Yasur.
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The Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report, compiled by Sally Kuhn Sennert, has been issued for the week 1-7 June 2011. It’s been a lively volcanic week – highlights include:

  • Dieng Volcanic Complex: carbon dioxide emissions and seismicity both remain elevated
  • Popocatépetl: ash plumes reaching altitudes between 1 and 3 km create ashfall in nearby regions
  • Puyehue-Cordón Caulle: an eruption began on 4 June following intense seismicity
  • Kilaeua: two lava lakes were active during 1-7 June

SI/USGS Weekly Volcanic Activity Report 1-6 June 2011

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 1-7 June 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: Aso (Japan), Dieng Volcanic Complex (Indonesia), Kliuchevskoi (Russia), Popocatépetl (Mexico), Puyehue-Cordón Caulle (Chile), Yasur (Vanuatu).

Ongoing activity: Batu Tara (Indonesia), Dukono (Indonesia), Karangetang [Api Siau] (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Kizimen (Russia), Rabaul (Papua New Guinea), Sakura-jima (Japan), Shiveluch (Russia), Villarrica (Chile).

Note: ‘a.s.l.’ = ‘above sea level’.

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Smithsonian/USGS Weekly Volcanic Activity Report 25-31 May 2011 2 June 2011

Posted by admin in activity reports, Aso, Batu Tara, Costa Rica, Dieng Volcanic Complex, Ecuador, Grímsvötn, Hawaii, Iceland, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kizimen, Kliuchevskoi, Mexico, Papua New Guinea, Poás, Popocatépetl, Russia, Sakura-jima, Shiveluch, Taal, Tungurahua, Ulawun, United States, Weekly Volcanic Activity Reports.
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The Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Report has been issued for the week 25-31 May 2011. The report is compiled by Sally Kuhn Sennert. Notable volcanic events this week include:

  • Dieng Volcanic Complex: evacuations following increase in gas emissions and seismic activity
  • Grímsvötn: an eruption characterized by explosive activity and ash plumes, with limited ashfall
  • Kilauea: the level of the Pu’u’O’o lava lake continued to fluctuate
  • Taal: water temperature, acidity and water level all rose in Taal’s Main Crater Lake, and there was an increase in seismic activity

SI/USGS Weekly Volcanic Activity Report 25-31 May 2011

Click on the map for a larger version (1211 x 784 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 25-31 May 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: Aso (Japan), Dieng Volcanic Complex (Indonesia), Grímsvötn (Iceland), Kliuchevskoi (Russia), Ulawan (Papua New Guinea).

Ongoing activity: Batu Tara (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Kizimen (Russia), Popocatépetl (Mexico), Poás (Costa Rica), Sakura-jima (Japan), Shiveluch (Russia), Taal (Philippines), Tungurahua (Ecuador).

Note: ‘a.s.l.’ = ‘above sea level’.

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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, 29 December 2010 – 4 January 2011 8 January 2011

Posted by admin in activity reports, Bezymianny, Bulusan, Caribbean, Colombia, Ecuador, eruptions, Etna, Fuego, Gaua, Guatemala, Hawaii, Indonesia, Italy, Japan, Kamchatka, Karymsky, Kilauea, Kizimen, Machín, Manam, Pacific, Papua New Guinea, Philippines, Russia, Sakura-jima, Santa María, Shiveluch, Soufrière Hills, Stromboli, Suwanose-jima, Tengger Caldera, Tungurahua, United States, Vanuatu, Weekly Volcanic Activity Reports.
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The Smithsonian Institution and United States Geological Survey Weekly Volcanic Activity Reports enter their second decade of chronicling what the world’s volcanoes are up to with this week’s report, which covers 29 December 2010 to 4 January 2011 and is compiled by Sally Kuhn Sennert. Some selected highlights:

  • Etna: light ashfall, incandescence, vigorous strombolian activity
  • Manam: new eruptive episode – ash plumes, some dense; incandescence; pyroclastic flows
  • Stromboli: increase in the frequency and intensity of explosions from the S1 vent
  • Machín: increase in low-magnitude volcanic-tectonic seismicity recorded

SI/USGS Weekly Volcanic Activity Report 29 December 2010 - 4 January 2011

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

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 29 December 2010 – 4 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), Stromboli (Italy).

Ongoing activity: Bezymianny (Russia), Bulusan (Philippines), Fuego (Guatemala), Gaua (Vanuatu), Karymsky (Russia), Kilauea (Hawaii, USA), Machín (Colombia), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tengger Caldera (Indonesia), Tungurahua (Ecuador).

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