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Suwanose-jima

Schichtvulkan 799 m/ 2,621 ft
Ryukyu-Inseln, Japan, 29.64°N / 129.72°E
Aktueller Status: Ausbruch (4 von 5)
Last update: 3 Mar 2021 (Volcanic Ash Advisory)

Suwanose-jima (諏訪之瀬島) volcano is Japan's and one of the world's most active volcanoes. It has been in a state of near-continuous strombolian-type eruption since 1949.
The volcano forms the 8 km long spindle-shaped island of the same name in northern Ryuku Islands, Japan. The remote island is home to about 50 residents only.
Suwanose-jima consists of an andesitic stratovolcano with 2 historically active summit craters. Intermittent to continuous strombolian activity began from On-take (Otake), the NE summit crater, in 1949 and has been going on since. After 1996, occasional periods of inactivity have become more frequent.

Interaktive Karte zeigen
Typische Tätigkeit: explosive, strombolian
Ausbrüche: 2004 (Oct) - 2011 (ongoing) strombolian-type activity
Since 1949: essentially continuous activity
1999 (Jan-Feb, June), 2000 (Dec) - Jul 2004 (Jul): strombolian activity
1996 (Dec) - 1997 (Apr), 1949-96, 1940, 1938, 1934 (?), 1925, 1921-22, 1915 (?), 1914 (?), 1889, 1885, 1884, 1877, 1813, around 1600 AD (large explosive eruption)

TimeMag. / TiefeEntfernungEpizenter
Wed, 3 Mar 2021 (GMT) (1 earthquake)
3. Mär. 2021 21:27 (GMT +9) (3 Mar 2021 12:27:30 GMT)
3.3

91 km - More
107 kmEast China Sea, 60 km nordwestlich von Naze, Amami Shi, Kagoshima, Japan
Sun, 28 Feb 2021 (GMT) (1 earthquake)
1. Mär. 2021 01:12 (GMT +9) (28 Feb 2021 16:12:05 GMT)
4.7

37 km - More
149 kmPhilippines Sea, 60 km südlich von Nishinoomote, Kagoshima, Japan
Fri, 26 Feb 2021 (GMT) (1 earthquake)
27. Feb. 2021 06:01 (GMT +9) (26 Feb 2021 21:01:30 GMT)
3.5

10 km - More
49 kmEast China Sea, 55 km südlich von Kuchinoerabu-jima, Kagoshima, Japan

Beschreibung

The summit of Suwanose-jima volcano is truncated by a large breached crater extending to the sea on the east flank that was formed by edifice collapse.

The largest historical eruption took place in 1813-14, when thick scoria deposits blanketed residential areas, and the SW crater produced 2 lava flows that reached the western coast. At the end of the eruption the summit of On-take collapsed forming a large debris avalanche and creating the horseshoe-shaped Sakuchi caldera, which extends to the eastern coast. The island remained uninhabited for about 70 years after the 1813-1814 eruption. Lava flows reached the eastern coast of the island in 1884.
(Source: Smithsonian / GVP information)

1979-80 activity
A typical 2 year log of activity from Smithsonian's Monthy reports is presented here, illustrating the pulsating, but essentially persistant strombolian activity observed at Suwanose-jima volcano ...mehr

See also: Sentinel hub | Landsat 8

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