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SI/USGS Weekly Volcanic Activity Report, 4 March 2009 – 10 March 2009 12 March 2009

Posted by admin in activity reports, Alaska, Batu Tara, Caribbean, Chaitén, Chile, Colombia, Ecuador, eruptions, Fuego, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Koryaksky, Mexico, Papua New Guinea, Peru, Popocatépetl, Rabaul, Redoubt, Russia, Sakura-jima, Sangay, Santa María, Semeru, Shiveluch, Soufrière Hills, Suwanose-jima, Tungurahua, Ubinas, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 4 March 2009 - 10 March 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 4 March 2009 to 10 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: Koryaksky (Kamchatka, Russia), Sakura-jima (Japan), Semeru (Java, Indonesia).

Ongoing activity: Batu Tara (Komba Island, Indonesia), Chaitén (Chile), Fuego (Guatemala), Galeras (Colombia), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Popocatépetl (Mexico), Rabaul (Papua New Guinea), Redoubt (Alaska, USA), Sangay (Ecuador), Santa María (Guatemala), Shiveluch (Kamchatka, Russia), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tungurahua (Ecuador), Ubinas (Peru).

NEW ACTIVITY

Koryaksky (Kamchatka, Russia): 3 Mar 09, seismic activity above background levels; 3-5 Mar 09, gas plumes with low ash content to 3.7 km a.s.l., drifted ENE, E, and SE; ash deposits observed at summit and between Koryaksky and Avachinsky volcanoes; weak new fumarole observed in the crater.

Sakura-jima (Japan): 7-10 Mar 09, 12 Vulcanian explosions at Showa Crater on E flank, ejected
bombs reported landing up to 800 m from the crater, plumes to 2.9 km a.s.l.; 7 Mar 09 & 8-10 Mar 09, eruptions and explosions produced plumes to 1.8-2.7 km a.s.l.

Semeru (Java, Indonesia): 6 Mar 09, ash eruption, increased seismicity and booming sounds from Jonggring Seloko crater; 7 Mar 09. possible plume to 3.7-4.3 km a.s.l.

ONGOING ACTIVITY

Batu Tara (Komba Island, Indonesia): 9 & 10 Mar 09, ash plumes to 2.1 km a.s.l.; 9 Mar 09, plumes drifted 37 km NE to NW; 10 Mar 09, plumes drifted NE and N.

Chaitén (Chile): 28 Feb – 3 Mar 09, continued growth of the lava-dome complex, collapses generated block-and-ash, volcanic material accumulated around the dome complex and in adjacent river valleys, ash-and-gas plumes drifted mainly SE; 3 Mar 09, steam-and-ash plume rose 1 km above the domes, drifted S.

Fuego (Guatemala): 5 Mar 09, multiple ash plumes drifted W; 6 & 10 Mar 09, explosions produced ash plumes to altitudes of 4.2-4.8 km a.s.l., drifted S and SW, some explosions accompanied by rumbling noises, shock waves detected 8 km away, avalanches of blocks down all
flanks, ash plumes to 5 km a.s.l., ashfall reported to SW.

Galeras (Colombia): 6-10 Mar 09, white gas plumes from Galeras with occasional grey or brown tints to under 6.3 km a.s.l.

Karymsky (Kamchatka, Russia): 27 Feb – 6 Mar 09, ash plumes probably rose to 3.5 km a.s.l.; 27-8 Feb & 1-4 Mar 09, thermal anomaly detected on the lava dome; 3 Mar 09, ash deposits on the volcano observed, ash plume reported to 3.5 km a.s.l., drifted E; 4 Mar 09, ash plume drifted 120 km SE.

Kilauea (Hawaii, USA): 4-10 Mar 09, lava flowed SE to Waikupanaha ocean entry and produced occasional explosions; thermal anomalies on the coastal plain suggested surface flows (scattered surface flows noted on 5 and 9 Mar); Halema’uma’u vent continued to produce white plume, intermittent incandescence seen; 3 Mar 09, two spattering vents and a hot area about 100 m below the vent rim observed; 4-5 Mar 09, hot areas visible; 6 Mar 09, enlarged puffing vent observed.

Popocatépetl (Mexico): 4-10 Mar 09, emissions of steam and gas visible; 5 Mar 09, plumes contained slight amounts of ash.

Rabaul (Papua New Guinea): 2-8 Mar 09, white plumes and gray ash plumes from Tavurvur cone to 1.7 km a.s.l., drifted NW and SE; incandescence observed and incandescent tephra ejected; 4-6 Mar 09, rumbling and roaring noises reported, ashfall downwind; 10 Mar 09, ash plume to 3 km a.s.l., drifted N.

Redoubt (Alaska, USA): 4-10 Mar 09, seismic activity variable but above background levels.

Sangay (Ecuador): 10 Mar 09, ash plume to 5.5 km a.s.l., drifted W; thermal anomaly detected.

Santa María (Guatemala): 4-6 Mar 09, ash plumes from Santiaguito lava dome complex drifted W; 6 & 10 Mar 09, explosions produced ash plumes to 2.8-3.4 km a.s.l., drifted SW, NW, and N; ashfall reported downwind.

Shiveluch (Kamchatka, Russia): 27 Feb – 6 Mar 09, seismic activity above background levels, ash plumes probably rose to 5.4 km a.s.l.; 28 Feb & 3-5 Mar 09, fumaroles active; 3-4 Mar 09, ash plumes rose to 4.7 km a.s.l., drifted NE during 3-4 March.

Soufrière Hills (Montserrat): 27 Feb – 6 Mar 09, activity at a low level; 6 Mar 09, pyroclastic flow traveled E to the sea.

Suwanose-jima (Japan): 6 Mar 09, multiple explosions reported.

Tungurahua (Ecuador): 4 Mar 09, slight ashfall reported to the NW; 6 Mar 09, steam-and-ash
plumes to 500 m above the crater; 8 Mar 09, steam plumes to 100 m above the summit, fumaroles on E flank were active.

Ubinas (Peru): 4 Mar 09, ash plume to 5.8 km a.s.l., drifted SW.

ACKNOWLEDGEMENTS AND DISCLAIMER

The foregoing is a summary of the Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 4 March 2009 to 10 March 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.

For all our coverage of the SI/USGS Weekly Volcanic Activity Reports: Weekly Volcanic Activity Reports « The Volcanism Blog.

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