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Diaporama

Sakurajima volcan éruptions

stratovolcan 1117 m / 3,665 ft
Kyushu, Japan, 31.59°N / 130.66°E
Liste des éruptions: 1955-en cours, 1954(?), 1950, 1948, 1946, 1942, 1941, 1940, 1939, 1938, 1935, 1914-15, 1899(?), 1860, 1799, 1797, 1794, 1792, 1791, 1790, 1785, 1783, 1782, 1779-81, 1756, 1749, 1742, 1706, 1678, 1670(?), 1642, 1478, 1471-76, 1468, 778, 766, 764, 716-18, 712(?), 708


2006-2010 Activity: moderate explosions at 1-5 days intervals
Moderate explosions with typical plume heights of around 2 km occured every 1-5 days during most of 2006-10. In 2009, a slight increase of activity was observed. Plume heights of explosions reached a maximum of 5 km altitude (4 km height).

4 June 2006: first eruption outside the summit crater in 58 years
On 4 June 2006, Sakurajima erupted from a small vent outside the summit crater, near or within the crater which erupted the 1946 (Showa) lava flow on the E slope of Minami-dake summit. The eruption continued intermittently until the next morning.

Activity in 2000-2005
Sakurajima returned to low to medium levels of activity, with 150-200 eruptions per year. Occasional stronger explosions, such as on 7 October 2000, caused eruption columns as tall as 5 km above the crater, abundant ash falls, and damage windshields to cars.

Oct - Dec 1999 eruptions
Vigorous activity began in October 1999, marked by lava fountains and large large amounts of ejected ballistic bombs, blocks and lapilli falling as far as 4 km from the crater.

Activity in the 1990s
Compared to the 1980s, activity remained at lower levels at Sakurajima in the 1990, with explosions often occurring only at intervals of several days. Long pauses in explosive activity characterize the year 1995.

Activity in the 1980s
Explosions continue to occur typically one per day or two. Between 1985 and 1987, the activity produces particularly violent eruptions, peaking in November with 3 powerful explosions that cause much damage to cars and houses by impacting volcanic bombs.

Activity in the 1970s
Sarkurajima's activity was characterized by typically one explosion per day. THe largest eruptions produced plumes up to 4 km high, and on several occasions, landing aircraft at Kagoshima airport were damaged when flying through ash.
The eruptions caused no fatalities, but damaged cars, windows and crops in the immediate area around the volcano.
 

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