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Piton de la Fournaise volcano (Reunion Island, France) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 February-10 February 2015 (New Activity / Unrest)

Mi, 4. Feb 2015, 06:00
06:00 AM | VON: VN
OVPDLF reported that 180 earthquakes at Piton de la Fournaise were recorded from 0400 to 0900 on 4 February, including five events greater than M 2. A seismic crisis began at 0910, tremor was recorded at 1050, and an eruption began at 1100. Observers noted that a fissure had opened on the S flank, triggering an Alert Level 2-2 (ongoing eruption) and the restriction of access by the public to the summit area.
The fissure was 500 m long, starting from an area located 100 m outside and to the W of Bory Crater. Activity was concentrated on the southernmost part of the fissure. Lava was ejected from the vent about 10 m high and rapidly flowed SSW towards the Rivals Crater, branched, and spread in an area S and SE of the crater.
By the late afternoon the farthest-reaching branch had traveled past Cornu Crater. Tremor levels decreased through the day and were relatively low by 1800; on 6 February tremor levels were very low. Small cones had formed over the vents and produced low gas plumes.
Inclement weather reduced visibility of the eruption site, although on 8 February observers noted that lava continued to flow from the vents, and another flow traveled further W. On 9 February a vent was weakly active with small explosions and small splashes of lava. Tremor remained stable and low on 10 February.

Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)
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From: Global Volcanism Program, 2015. Report on Piton de la Fournaise. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 4 February-10 February 2015. Smithsonian Institution and US Geological Survey.

Vorherige Nachrichten

Do, 4. Dez 2014, 10:01

Piton de la Fournaise volcano (La Réunion): alert level raised, eruption warning

A new eruption could be under way at the volcano. An increase in seismic activity, inflation of the volcanic edifice, and SO2 gas mixed into the degassing plume, typical for a fresh magma intrusion at shallow depth have been detected by the volcano observatory (OVPF). ... Read all
Mi, 5. Nov 2014, 06:06

Piton de la Fournaise volcano (La Réunion): increased seismic activity

Seismic activity under La Réunion in 2014; the black dot represents the recent earthquakes under Piton de la Fournaise volcano (image: OVPF)
There are signs that a new eruption could be on its way: an increasing number of shallow earthquakes has been registered under the volcano recently. Read all
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Shield volcano 2631 m (8,632 ft)
La Réunion, -21.24°S / 55.71°E
Aktueller Status: Ausbruch (4 von 5) Ausbrüche des Piton de la Fournaise:
1900, 1901, 1901, 1902, 1903(?), 1904, 1905, 1907, 1908(?), 1909, 1910, 1913, 1915, 1917, 1920, 1921, 1924, 1924, 1925-26, 1926-27, 1929, 1930, 1931, 1932, 1933-34, 1935(?), 1936, 1937, 1938, 1938-39, 1941, 1942, 1943, 1944, 1945, 1946, 1947(?), 1948, 1948(?), 1950, 1951(?), 1951, 1952, 1953, 1954, 1955-57, 1958, 1959, 1960, 1961, 1963, 1964, 1964-65, 1966, 1972, 1973, 1973, 1975-76, 1976, 1977, 1977, 1979, 1981, 1983-84, 1985-88, 1990, 1991, 1992, 1998, 1999, 2000 (Feb-March), 2001 (March-April), 2001 (June-July), 2002 (Jan.), 2002 (Nov-Dec), 2003 (May) - 2004 (Jan), 2004 (May), 2004 (Aug-Oct), 2005 (Feb-March), 2005 (Oct), 2005 (Nov), 2005 (Dec)-2006 (Jan), 2007, 2008, 2009, 2010 (Oct), 2010 (Dec), 2014 (June), 2015 (Feb), 2015 (May), 2015 (Aug-Oct), 2016 (May, Sep), 2017 (Jan-Mar), 2018 (Apr, 2x), 2018 (Sep), 2019 (Feb, June, July, Aug, Oct), 2020 (Feb), 2020 (Dec), 2021 (Apr), 2021 (Dec)
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