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VolcanoWatch Weekly [10 Dec 2009]

Posted by feww on December 10, 2009

SI / USGS Weekly Volcanic Activity Report
(2 December – 8 December 2009)

New activity/Unrest:

  • Region: Central Chile
  • Volcano Type: Stratovolcano
  • Last Known Eruption: 2009
  • Summit Elevation: 3,125 m  (10,253 feet)
  • Latitude: 38.692°S  (38°41’30″S)
  • Longitude: 71.729°W (71°43’43″W)

Llaima, one of Chile’s largest and most active volcanoes, has a symmetrical profile when seen from the north. The massive, 3125-m-high, glacier-covered stratovolcano is constructed primarily of accumulated lava flows and has a volume of 400 cu km. Volcán Llaima contains two historically active craters, one at the summit and the other to the SE. More than 40 scoria cones dot the volcano’s flanks. Frequent moderate explosive eruptions, a few of which were accompanied by lava flows, have been recorded since the 17th century. Photo by Norm Banks, 1990 (U.S. Geological Survey). Caption: GVP.

Volcano News (Source: GVP)

KVERT reported that during 27 November-4 December seismic activity from Kliuchevskoi was above background levels and lava continued to flow down the ESE flank. Strombolian activity ejected tephra 300 m above the crater.

Cameras operated by OVDAS-SERNAGEOMIN showed steam-and-gas plumes rising from Llaima’s main crater and E flank during 14 November-1 December. Although seismicity generally decreased, a new type of long-period, low-frequency earthquake was detected. (Source: GVP)

Ongoing Activity

Ambrym, Vanuatu (SW Pacific);  Chaitén, Southern Chile; Colima, México;  Dukono, Halmahera; Fuego, Guatemala; Karymsky, Eastern Kamchatka;  Kilauea, Hawaii (USA);  Kliuchevskoi, Central Kamchatka (Russia);  Rabaul, New Britain;  Sakura-jima, Kyushu;  San Cristóbal, Nicaragua;  Shiveluch, Central Kamchatka (Russia); Soufrière Hills, Montserrat;  Suwanose-jima, Ryukyu Islands (Japan).

Related Links:

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FEWW Volcanic Activity Forecast

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One Response to “VolcanoWatch Weekly [10 Dec 2009]”

  1. […] VolcanoWatch Weekly [10 Dec 2009] […]

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