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SI/USGS Weekly Volcanic Activity Report, 22 April 2009 – 28 April 2009 30 April 2009

Posted by admin in activity reports, Alaska, Bagana, Barren Island, Batu Tara, Caribbean, Chaitén, Chile, Colombia, Dukono, Ebeko, Ecuador, eruptions, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kerinci, Kilauea, Koryaksky, Krakatau, Llaima, Pacaya, Papua New Guinea, Rabaul, Redoubt, Reventador, Russia, Sakura-jima, Santa María, Shiveluch, Slamet, Soufrière Hills, Suwanose-jima, Tungurahua, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 22 April 2009 - 28 April 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 22 April 2009 to 28 April 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Bagana (Papua New Guinea), Ebeko (Paramushir Island, Russia), Galeras (Colombia), Pagan (Mariana Islands), Reventador (Ecuador), Shiveluch (Kamchatka, Russia), Slamet (Java, Indonesia).

Ongoing activity: Barren Island (Andaman Islands), Batu Tara (Komba Island, Indonesia), Chaitén (Chile), Dukono (Halmahera, Indonesia), Fuego (Guatemala), Karymsky (Kamchatka, Russia), Kerinci (Sumatra, Indonesia), Kilauea (Hawaii, USA), Koryaksky (Kamchatka, Russia), Krakatau (Indonesia), Llaima (Chile), Pacaya (Guatemala), Rabaul (Papua New Guinea), Redoubt (Alaska, USA), Sakura-jima (Japan), Santa María (Guatemala), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tungurahua (Ecuador).

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SI/USGS Weekly Volcanic Activity Report, 1 April 2009 – 7 April 2009 16 April 2009

Posted by admin in activity reports, Africa, Alaska, Batu Tara, Caribbean, Chile, Colombia, Congo (Dem. Rep.), Ebeko, eruptions, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Koryaksky, Krakatau, Llaima, Mexico, Nyamuragira, Nyiragongo, Pacaya, Popocatépetl, Redoubt, Russia, Sakura-jima, Shiveluch, Soufrière Hills, Suwanose-jima, Tungurahua, United States.
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SI/USGS Weekly Volcanic Activity Report 1 April 2009 - 7 April 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 1 April 2009 to 7 April 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Ebeko (Paramushir Island), Krakatau (Indonesia) Llaima (Chile), Nyamuragira (Democratic Republic of Congo), Nyiragongo (Democratic Republic of Congo), Pacaya (Guatemala), Redoubt (Alaska).

Ongoing Activity: Asama (Japan), Batu Tara (Komba Island, Indonesia), Galeras (Colombia), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Koryaksky (Kamchatka, Russia), Popocatépetl (Mexico), Rabaul (Papua New Guinea), Sakura-jima (Japan), Shiveluch (Kamchatka, Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tungurahua (Ecuador).

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SI/USGS Weekly Volcanic Activity Report, 11 March 2009 – 17 March 2009 19 March 2009

Posted by admin in activity reports, Alaska, Arenal, Asama, Batu Tara, Chaitén, Chile, Colombia, Costa Rica, Ecuador, Fuego, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Koryaksky, Nevado del Huila, Pacaya, Pacific, Papua New Guinea, Peru, Rabaul, Redoubt, Russia, Sakura-jima, Santa María, Shiveluch, Suwanose-jima, Tonga, Tungurahua, Ubinas, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 11 March 2009 - 17 March 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 11 March 2009 to 17 March 2009 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Ebeko (Paramushir Island), Galeras (Colombia), Hunga Tonga-Hunga Ha’apai (Tonga), Koryaksky (Kamchatka, Russia), Redoubt (Alaska, USA), Semeru (Java, Indonesia).

Ongoing activity: Arenal (Costa Rica), Asama (Japan), Batu Tara (Komba Island, Indonesia), Chaitén (Chile), Fuego (Guatemala), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Nevado del Huila (Colombia), Pacaya (Guatemala), Rabaul (Papua New Guinea), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Kamchatka, Russia), Suwanose-jima (Japan), Tungurahua (Ecuador), Ubinas (Peru).

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SI/USGS Weekly Volcanic Activity Report, 28 January 2009 – 3 February 2009 5 February 2009

Posted by admin in activity reports, Asama, Barren Island, Chaitén, eruptions, Fuego, Karymsky, Kilauea, Kliuchevskoi, Pacaya, Rabaul, Redoubt, Sakura-jima, Santa María, Shiveluch, Soufrière Hills, Tungurahua, Ubinas, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 28 January 2009 - 3 February 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 28 January 2009 to 3 February 2009 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Asama (Japan), Redoubt (Alaska, USA).
Ongong activity: Barren Island (Andaman Islands), Chaitén (Chile), Fuego (Guatemala), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Kamchatka, Russia), Pacaya (Guatemala), Rabaul (Papua New Guinea), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Kamchatka, Russia), Soufrière Hills (Montserrat), Tungurahua (Ecuador), Ubinas (Peru).

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Guatemala roundup: Pacaya, Fuego, Santa María 5 April 2008

Posted by admin in activity reports, Fuego, Guatemala, Pacaya, Santa María.
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Reports from the Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) of Guatemala indicate continuing moderate activity at three of the country’s most active volcanoes.

Pacaya. Lava flows are being erupted on the north-eastern flank, with some reaching 200 metres in length, and constant fumarolic activity in the crater is producing a plume of water vapour and bluish-white hydrogen sulphide gas (‘gas sulfhídrico de color blanco azulado‘) which is being blown away to the south-east.

Fuego. 7 strong seismic tremors were recorded during a 24-hour period 2-3 April, each ranging from 1 to 4 minutes in duration, with 4 moderate and 3 weak tremors lasting up to 3 minutes. The tremors have been accompanied by explosive eruptions of grey ash to altitudes of 500-800 metres above the crater, producing an eruption plume 7 kilometres in length that is trending to the south and southwest. Incandescent material has been thrown out to an altitude of 75 metres.

Santa María. Small explosions caused by the degassing of the Santiaguito lava dome complex at Santa María are producing falls of fine ash in neighbouring rural areas. The number of avalanches of lava blocks caused by the collapse of viscous lava flows on the south-west flank of the dome has declined.

Information
Smithsonian Institution Global Volcanism Program – summary information for Pacaya (1402-11=)
Smithsonian Institution Global Volcanism Program – summary information for Fuego (1402-09=)
Smithsonian Institution Global Volcanism Program – summary information for Santa María (1402-03=)
INSIVUMEH, Guatemala – main page

The Volcanism Blog

Pacaya, Guatemala: increasing activity 17 January 2008

Posted by admin in activity reports, Guatemala, Pacaya.
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Activolcans reports that activity at Pacaya, Guatemala, has been increasing for several days, with explosive strombolian activity at the main crater (McKenney cone) and lava flows on the north-western and western flanks.

Pacaya, located 25km south of Guatemala City, is one of Guatemala’s most active volcanoes.

Information
Smithsonian Institution Global Volcanism Program – summary information for Pacaya (1402-11=)
INSIVUMEH – Instituto Nacional de Sismología, Vulcanología, Meterología e Hydrología, Guatemala
Volcan de Pacaya – information from INSIVUMEH (Spanish)

News
Dépêche n°2047 du 16-01-2008 Pacaya, Guatemala, 2552 m – report from Activolcans, 16 January 2008 (French)

The Volcanism Blog