Piton de la Fournaise volcan

Shield volcano 2631 m (8,632 ft)

Condition actuelle: en vigilance - niveau agité (2 sur 5)
Last update: 19 oct. 2021
Piton de la Fournaise erupting in 2010 (Photo: Sylvie and Philippe CHOUKROUN)
Piton de la Fournaise erupting in 2010 (Photo: Sylvie and Philippe CHOUKROUN)

Piton de la Fournaise, un volcan bouclier basaltiques typiques, situé sur l'île française La Réunion, est un des volcans les plus actifs et les plus productifs du monde. C'est dans une phase d'éruptions fréquentes mais de courte durées qui commencent avec les fontaines de lave et de produire des coulées de lave grand. Puisque les zones actives du volcan ne sont pas habitées, ses éruptions posent peu de danger et causent peu de dommages.

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Style éruptif tipique: Effusive
Eruptions du volcan 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)

HeureMag. / ProfondeurDistance/Lieu
mardi, 19. octobre 2021 06:51 GMT (1 séisme)
19 oct. 2021 10:51 (GMT +4) (19. oct. 2021 06:51 GMT)
2.0

1.4 km
3.8 km (2.4 mi)
Réunion: Near Saint-Pierre
lundi, 18. octobre 2021 16:08 GMT (2 séismes)
18 oct. 2021 20:08 (GMT +4) (18. oct. 2021 16:08 GMT)
2.0

1.4 km
3.5 km (2.2 mi)
La Réunion
18 oct. 2021 05:28 (GMT +4) (18. oct. 2021 01:28 GMT)
2.1

0.1 km
0.7 km (0.4 mi)
Réunion, Réunion, La Réunion

Introduction

Piton de la Fournaise is a typical example of a hot-spot volcano. The volcano is about 530,000 years old and during much of this time, its activity overlapped with eruptions of its older neighbor, the deeply dissected Piton des Neiges shield volcano to the NW.

Three calderas formed at about 250,000, 65,000, and less than 5000 years ago by progressive eastward slumping of the volcano. Numerous pyroclastic cones dot the floor of the calderas and their outer flanks. Most historical eruptions have originated from the summit and flanks of Dolomieu, a 400-m-high lava shield that has grown within the youngest caldera called the Enclos, which is 8 km wide and breached to below sea level on the eastern side. More than 150 eruptions, most of which have produced fluid basaltic lava flows, have occurred since the 17th century. Only six eruptions, in 1708, 1774, 1776, 1800, 1977, and 1986, have originated from fissures on the outer flanks of the caldera. The Piton de la Fournaise Volcano Observatory, one of several operated by the Institut de Physique du Globe de Paris, monitors this very active volcano.

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Source: adapted from GVP/Smithsonian Institution


See also: Sentinel hub | Landsat 8
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