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Llaima volcano (Chile) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 April-14 April 2009 (New Activity / Unrest)

Mi, 8. Apr 2009, 06:00
06:00 AM | VON: VN
On 8 April, SERNAGEOMIN reported that, after 74 hours of a vigorous Strombolian eruption from Llaima and accompanying lava flow emissions, activity declined quickly on 6 April until reaching a low level characterized by small amounts of ash emissions. On 7 April, weak emissions of gas and ash were observed. An overflight revealed that the main crater was completely obscured by a large pyroclastic cone with four inactive craters.
Sulfur dioxide and hydrochloric gasses were emitted. Two lava flows descended the W flank. The more southerly lava flow was about 4.5 km long and melted part of the glacier, causing a lahar to travel towards the Calbuco River.
The more northerly lava flow was similar in length, and branched off into two 1-km-long flows. It too caused a lahar. On the NE flank, a lava flow that originated from the base of the pyroclastic cone caused lahars that descended into the valley between Curacautín (30 km NNW) and the Conguillío National Park.

During 7-10 April, intermittent incandescence from a lava flow at the SW base of the pyroclastic cone was observed. Incandescent blocks originating from the lava flow descended W. On 8 April, gasses emitted from multiple points on the pyroclastic cone formed a plume that drifted NE.
Preliminary calculations indicated that the height of the pyroclastic cone exceeded the top of the main crater by 70 m, making the summit elevation 3,240 m a.s.l. During 9-10 and 13-14 April, gas and steam plumes rose from the pyroclastic cone; views were obscured by clouds on 11 and 12 April. On 14 April, fumarolic activity from the pyroclastic cone was again noted.
The Volcano Alert Level remained at Red.

Source: Servicio Nacional de Geología y Minería (SERNAGEOMIN)
From: Global Volcanism Program, 2009. Report on Llaima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 8 April-14 April 2009. Smithsonian Institution and US Geological Survey.

Vorherige Nachrichten

So, 5. Apr 2009, 10:27

Llaima volcano (Chile): new eruption on 4 April 09

A new eruption started at Llaima volcano on 4 April 09. Lava fountains and stormbolian activity from the summit vents fed lava flows travelling down the slope of the volcano. ... Read all
Mi, 1. Apr 2009, 06:00

Llaima volcano (Chile) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 April-7 April 2009 (New Activity / Unrest)

During 2-3 April, SERNAGEOMIN reported that seismicity from Llaima increased in frequency and amplitude and evolved into continuous seismic tremor. Steam plumes with small amounts of ash were emitted. Late in the day on 3 April, observers reported incandescence from the main crater. ... Read all
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Llaima Vulkan
Schichtvulkan 3125 m / 10,253 ft
Argentinien/Chile (Zentrum) (Südamerika), -38.69°S / -71.73°W
Aktueller Status: normal / ruhend (1 von 5) Ausbrüche des Llaima:
Jan 2008 - June 2009, 2007 (May-Aug), 2003, 1998, 1997, 1995, 1994, 1992, 1990, 1984, 1979, 1971-72, 1964, 1955-57, 1949, 1946, 1945, 1944, 1942, 1941, 1938, 1937, 1932-33, 1932, 1930, 1929, 1927, 1922, 1917, 1914, 1912, 1907-08, 1903, 1895-96, 1893-94, 1892, 1889, 1887, 1875-76, 1874 (?), 1872, 1869, 1866, 1864, 1862, 1852-53, 1822, 1759, 1751-52, 1640
Typische Aktivität
explosive and effusive
Satelite Images by (c) Google & NASA
Satelite Images by (c) Google & NASA
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