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

Mi, 1. Apr 2009, 06:00
06:00 AM | VON: VN
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.
Weak Strombolian explosions were produced by the N cone inside the crater. On 4 April, Strombolian activity and rhythmic explosions in the main crater originated from two nested pyroclastic cones. Incandescent tephra was ejected 700 m above the crater.
The Alert Level was raised to Red. ONEMI reported that fine ash fell in Verde Lake in the Conguillío National Park (a 608 square kilometer park containing Llaima) and a lava flow 1 km long traveled W towards the Calbuco River. Access to local parks was restricted and twelve people self-evacuated.

Later that day, authorities ordered an evacuation for people in high-risk areas, mainly due to the potential for lahars along the Calbuco River. According to news articles, 71 people evacuated.

SERNAGEOMIN reported that Strombolian activity continued on 5 April. A dark gray ash plume drifted E; heavy ashfall was reported in Lago Verde. A lahar traveled down the Captrén River (NNE) and lava continued to travel down the W flank.
On 6 April, poor weather mostly prevented visual observations, but continuous explosions were reported from Melipeuco (about 17 km SSE). Lahars again traveled down the Captrén River. Occasionally, gas-and-ash plumes were seen and drifted E; ash fell in areas E.
Heavy ashfall and lapilli up to 1.5 cm in diameter fell in areas between Conguillio Lake (about 10 km ENE, in Conguillío National Park) and the Arcoiris Lake (less than 10 km ENE, in Conguillío National Park). On 7 April, gas and ash emitted from multiple points formed a plume that rose 1 km above the summit and drifted NE. The flanks of the volcano were covered with bombs, lapilli, and ash.

Sources: Servicio Nacional de Geología y Minería (SERNAGEOMIN), Oficina Nacional de Emergencia-Ministerio del Interior (ONEMI), Reuters
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From: Global Volcanism Program, 2009. Report on Llaima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 1 April-7 April 2009. Smithsonian Institution and US Geological Survey.

Vorherige Nachrichten

Do, 15. Jan 2009, 23:00

Llaima volcano (Chile) eruption news: fumarolic activty & gas plumes

It was reported that there were ash emissions and gas plumes from cones inside Llaima's crater at 30 December-6 January. ... Read all
Mi, 14. Jan 2009, 06:00

Llaima volcano (Chile) - Smithsonian / USGS Weekly Volcanic Activity Report for 14 January-20 January 2009 (Continuing Activity)

Based on observations from POVI (Projecto Observación Visual Volcán Llaima), SERNAGEOMIN reported that weak ash emissions rose from Llaima's crater on 11 January. ... 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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