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SI/USGS Weekly Volcanic Activity Report, 31 December 2008 – 6 January 2009 8 January 2009

Posted by admin in activity reports, Bagana, Barren Island, Batu Tara, Chaitén, Cleveland, Colima, Dempo, Dukono, eruptions, Fuego, Karymsky, Kilauea, Kliuchevskoi, Koryaksky, Rabaul, Sangay, Santa María, Shishaldin, Shiveluch, Soufrière Hills, Suwanose-jima, Tungurahua, Ubinas, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 31 December 2008 - 6 January 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 31 December 2008 to 6 January 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: Cleveland (Alaska, USA), Dempo (Sumatra, Indonesia), Koryaksky (Kamchatka, Russia), Shishaldin (Alaska, USA), Soufriere Hills (Montserrat), Tungurahua (Ecuador).

Ongoing activity: Bagana (Papua New Guinea), Barren Island (Andaman Islands), Batu Tara (Komba Island, Indonesia), Chaiten (Chile), Colima (Mexico), Dukono (Halmahera, Indonesia), Fuego (Guatemala), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Kamchatka, Russia), Rabaul (Papua New Guinea), Sangay (Ecuador), Santa Maria (Guatemala), Shiveluch (Kamchatka, Russia), Suwanose-jima (Japan), Ubinas (Peru).

NEW ACTIVITY

Cleveland (Alaska, USA): 2 Jan 09, explosive emission of ash, ash plume to 6km a.s.l.; 4 Jan 09, thermal anomaly detected.

Dempo (Sumatra, Indonesia): 1 Jan 09, phreatic eruption.

Koryaksky (Kamchatka, Russia): 30-31 Dec 08, gas and steam plumes; 6-7 Jan 09, gas and steam plumes.

Shishaldin (Alaska, USA): 5-6 Jan 09, thermal anomalies detected, slight increase in seismic activity.

Soufrière Hills (Montserrat): 26 Dec 08 – 2 Jan 09, significantly increased lava extrusion, ash emissions, pyroclastic flows.

Tungurahua (Ecuador): 31 Dec 08 – 6 Jan 09, ash plumes to 6-7km a.s.l.; 2-4 Jan 09, incandescence at summit; 4 Jan 09, strombolian activity.

ONGOING ACTIVITY

Bagana (Papua New Guinea): 31 Dec 08, ash plume to 2.4km a.s.l.

Barren Island (Andaman Islands): 4-6 Jan 09, ash plumes to 2.4km a.s.l.

Batu Tara (Komba Island, Indonesia): 6 Jan 09, ash plume to 2.4km a.s.l.

Chaitén (Chile): 31 Dec 08 – 2 Jan 09 and 4-5 Jan 09, ash plumes continuously to 1.8-2.4km a.s.l.

Colima (Mexico): 2 Jan 09, incandescent material erupted at the summmit, grey plume to 4.1km a.s.l.; 3-5 Jan 09, grey and white plumes to 4.0-4.2km a.s.l.

Dukono (Halmahera, Indonesia): 6 Jan 09, ash plume to 1.8km a.s.l.

Fuego (Guatemala): 1 Jan 09, two ash plumes; 4-6 Jan 09, explosions produced ash plumes to 4.1-5.1km a.s.l.

Karymsky (Kamchatka, Russia): Level of Concern Colour Code remains Orange.

Kilauea (Hawaii, USA): 31 Dec 08 – 6 Jan 09, lava flows and phreatic explosions at ocean entry, earthquakes beneath the caldera, white plume from Halema’uma’u vent.

Kliuchevskoi (Kamchatka, Russia): 26 Dec 08 – 2 Jan 09, seismicity elevated; 25-27 Dec 08, strombolian activity and lava effusion; 25 Dec 08, gas and steam plumes containing ash to 5.5km a.s.l.

Rabaul (Papua New Guinea): 31 Dec 08, 1 and 3-5 Jan 09, ash plumes from Tavurvur cone to 2.4km a.s.l.

Sangay (Ecuador): 5 Jan 09, ash plume to 7km a.s.l.

Santa María (Guatemala): 1 Jan 09, two small ash plumes; 4-5 Jan 09, gas and steam plumes possibly containing some ash; 5-6 Jan 09, fumarolic plumes, five explosions produced ash plumes to 2.8-3.0km a.s.l.

Shiveluch (Kamchatka, Russia): 25 Dec 08 – 2 Jan 09, seismicity elevated, ash plumes to 5.5-7.0km a.s.l.; 25 and 30 Dec 08 and 1 Jan 09, gas and steam emissions. 1, 2, 5, 6 Jan 09, eruption plumes to 4.6-5.8km a.s.l.

Suwanose-jima (Japan): 3 Jan 09, eruption plume to 1.2km a.s.l.

Ubinas (Peru): 5 Jan 09, ash plume to 5.5km a.s.l.

ACKNOWLEDGEMENTS AND DISCLAIMER

The foregoing is a summary of the Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 31 December 2008 to 6 January 2009. It is provided for information only, and is based on but not a substitute for the full report, which comes with its own criteria and disclaimers. The map base is derived from the Smithsonian Institution/USGS/US Naval Research Laboratory This Dynamic Planet website.

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