slowed effusive eruption / VolcanoDiscovery – fr

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slowed effusive eruption / VolcanoDiscovery – fr


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Piton de la Fournaise volcano

Shield Volcano 2,631 m (8,632 ft)
Réunion, -21.24 ° S / 55.71 ° E
Actual status: erupting (4 of 5)

Piton de la Fournaise volcano eruptions:

1900, 1901, 1901, 1902, 1903 (?), 1904, 1905, 1907, 1908 (?), 1909, 1910, 1913, 1915, 1917, 1920, 1921, 1924, 1924, 1925-1926, 1926-1927, 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 (February-March), 2001 (March-April), 2001 (June-July), 2002 (January .), 2002 (November-December), 2003 (May) – 2004 (January), 2004 (May), 2004 (August-October), 2005 (February-March), 2005 (October), 2005 (November), 2005 (December) -2006 (January), 2007, 2008, 2009, 2010 (October), 2010 (December), 2014 (June), 2015 (February), 2015 (May), 2015 (August-October), 2016 (May , Sep), 2017 (Jan-Mar), 2018 (Apr, 2x), 2018 (Sep), 2019 (Feb, Jun, July, Aug, Oct), 2020 (Feb), 2020 (Dec), 2021 (Apr )
Typical rash style:
Expansive

More, 5 May 2021, 04:55

04:55 AM | BY: MARTIN

Aerial view of two main ash cones at the current eruption site of the volcano (Image: OVPF)
Aerial view of two main ash cones at the current eruption site of the volcano (Image: OVPF)
The current eruption site shows both the ash cones and the lava flow (Image: OVPF)
The current eruption site shows both the ash cones and the lava flow (Image: OVPF)
The progression of RSAM values ​​(volcanic tremor indicator) illustrates the downward trend over the past few days (image: OVPF)
The progression of RSAM values ​​(volcanic tremor indicator) shows a downward trend in recent days (image: OVPF)

The current the effusive activity of the volcano slowed on May 2 and continues with a downward trend as a decrease in volcanic tremor has been recorded over the past few days.
Two main ash cones continue to be active which have accumulated around the crack vents.
The lava flow, which emerged mainly in the lava tunnels, continues to progress slowly towards Grandes Pentes. The flow front on the southern flank increased by 180 meters and reached approx. 1,500 m altitude yesterday.
According to HOTVOLC satellite images, the average lava discharge rate at the current eruption site is about 1 to 5.3 cubic meters per second.
The seismic network detected 3 volcano-tectonic earthquakes under the summit craters.
The instruments continue to detect a slight deformation of the ground linked to the emptying of the shallow magma chamber located under the Dolomieu crater at depths between 1.5 and 2 km.
Carbon dioxide (CO2) emissions continue at high levels.
Source: Piton de la Fournaise volcanological observatory volcano activity update 5 May 2021

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