SI/USGS Weekly Volcanic Activity Report, 14 January 2009 – 20 January 2009 22 January 2009Posted by admin in activity reports, Barren Island, Chaitén, Dieng Volcanic Complex, Dukono, eruptions, Fuego, Galeras, Karymsky, Kilauea, Kliuchevskoi, Llaima, Nevado del Huila, Poás, Rabaul, Sakura-jima, Shiveluch, Soufrière Hills, Tungurahua, Weekly Volcanic Activity Reports.
Tags: Global Volcanism Program, volcanic activity reports, volcanic eruptions
The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 14 January 2009 to 20 January 2009 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.
- The current report: Weekly Volcanic Activity Report.
- Previous reports: Weekly Reports Archive.
- The SI/USGS map of volcanoes discussed this week.
New activity: Dieng Volcanic Complex (Java, Indonesia), Poas (Costa Rica), Rabaul (Papua New Guinea).
Ongoing activity: Barren Island (Andaman Islands), Chaiten (Chile), Dukono (Halmahera, Indonesia), Fuego (Guatemala), Galeras (Colombia), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Kamchatka, Russia), Llaima (Chile), Nevado del Huila (Colombia), Sakura-jima (Japan), Shiveluch (Kamchatka, Russia), Soufriere Hills (Montserrat), Tungurahua (Ecuador).
Dieng Volcanic Complex (Java, Indonesia): 15 Jan 09, two minor phreatic eruptions from Sibanteng crater.
Poás (Costa Rica): landslides, rockfalls, new fractures and increased fumarolic activity reported following magnitude 6.2 earthquake near Poás on 8 Jan 09; phreatic eruption in the crater lake on 12 Jan 09.
Rabaul (Papua New Guinea): 14-18 Jan 09, ash plumes from Tavurvur cone to 3km a.s.l.; 16 Jan 09, grey ash plumes reported.
Barren Island (Andaman Islands): 18-19 Jan 09, ash plumes to 3km a.s.l.
Chaitén (Chile): 9-12 Jan 09, increased seismicity; constant partial collapses of active lava dome; 15, 17, 19 and 20 Jan 09, ash plumes to 1.5-2.1km a.s.l.; small thermal anomaly detected on 19 Jan 09.
Dukono (Halmahera, Indonesia): 18 Jan 09, ash plumes to 3km a.s.l.
Fuego (Guatemala): 14 Jan 09, ash plume to 4.9km a.s.l.; 19 and 20 Jan 09, explosions produced ash plumes to 4.1-4.6km a.s.l.; rumbling sounds and avalanches reported.
Galeras (Colombia): 14-15 and 17-19 Jan 09, greyish plumes to altitudes below 5.7km a.s.l.
Karymsky (Kamchatka, Russia): 10-14 Jan 09, seismic activity elevated above background levels, possible ash-and-gas explosions; 8-12 and 14-15 Jan 09, thermal anomaly detected; 8 and 12 Jan 09, gas and steam plumes emitted.
Kilauea (Hawaii, USA): 14-20 Jan 09, lava flows through tube system to Waikupanaha ocean entry, surface flows and incandescence; 17-18 Jan 09, phreatic explosions at the ocean entry; 16 Jan 09, sulphur dioxide concentrations from Halemaumau vent reached unsafe levels; 17 Jan 09, rockfalls reported at Halemaumau vent, with vent rim collapses on 18 Jan 09 and faint incandescence within the vent on 20 Jan 09.
Kliuchevskoi (Kamchatka, Russia): 9-16 Jan 09, seismic activity above background levels, gas-and-steam plumes to 6.8km a.s.l.; 9 and 10 Jan 09, strombolian activity noted. Large daily thermal anomaly noted at the crater.
Llaima (Chile): 11 Jan 09, weak ash emissions reported.
Nevado del Huila (Colombia): 18-19 Jan 09, continuous emissions observed producing white plumes to under 1km above the summit.
Sakura-jima (Japan): 15 Jan 09, explosion produced plume to 1.8km a.s.l.
Shiveluch (Kamchatka, Russia): 9-16 Jan 09, seismic activity above background levels; 9 Jan 09, ash plume to 7.3km a.s.l.; 14 Jan 09, ash plume to 6.9km a.s.l.; on other days in the reporting period, ash plumes to 5.5km; 8-10 and 12-14 Jan 09, gas-and-steam activity; large daily thermal anomaly reported over the lava dome.
Soufrière Hills (Montserrat): 9-16 Jan 09, low seismicity, minimal rockfalls, no lava dome incandescence.
Tungurahua (Ecuador): 13 and 15-16 Jan 09, steam-and-ash plumes to 6-7km a.s.l.; almost daily ashfall reported in areas to north, west and south-west; roaring and exposions occasionally reported; 15, 18 and 19 Jan 09, incandescence reported in the crater; 16 Jan 09, small lahar to the south; 19 Jan 09, crater fumaroles observed.
ACKNOWLEDGEMENTS AND DISCLAIMER
The foregoing is a summary of the Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 14 January 2009 to 20 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.