2 spots left on Iceland Geo Tour 16-30 July 2022

Aso

caldera 1592 m / 5,223 ft
central Kyushu, Japan, 32.88°N / 131.11°E
Aktueller Status: normal / ruhend (1 von 5)
Last update: 20 Apr 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)
The huge Aso caldera seen from space: 25 by 18 km in size, it was created by at least 4 huge eruptions between 270 to 90 thousand years ago (image: NASA Earth Observatory)
The huge Aso caldera seen from space: 25 by 18 km in size, it was created by at least 4 huge eruptions between 270 to 90 thousand years ago (image: NASA Earth Observatory)

Aso (or Asosan) volcano in central Kyushu Island in southwestern Japan is one of the world's most active volcanoes. In recent years, it has been the site of frequent ash eruptions.
Aso is no single edifice, but a complex of active vents in the center of a large 24 km wide caldera.

Interaktive Karte zeigen
Typische Tätigkeit: explosive
Ausbrüche: 2021, 2019-2020, 2016, 2014-15, 2011 (May), 2005, 2004, 2003, 1994-95, 1992-93, 1989-91, 1988, 1984-85, 1983, 1981, 1980, 1979-80, 1977-78, 1975-76, 1973-75, 1970-72, 1967-69, 1964-66, 1964, 1963-64, 1963, 1960-62, 1960, 1959, 1957-58, 1957, 1956, 1955, 1954, 1953, 1952(?), 1951, 1950-51, 1949, 1948, 1947, 1946, 1945, 1943-44, 1943, 1942(?), 1940-41, 1938-39, 1937, 1936, 1935, 1934, 1932-33, 1931(?), 1930, 1928-29, 1926-28, 1925, 1923, 1920, 1919, 1918, 1916, 1914, 1911-12, 1910, 1909, 1908, 1907, 1906, 1898-99, 1897, 1894, 1884, 1874, 1872-73, 1856, 1854, 1838, 1837, 1835, 1830-32, 1830, 1829, 1828, 1827-28, 1827, 1826, 1816, 1815, 1814, 1806, 1804, 1781-88, 1772-80, 1765, 1753(?)-54, 1709, 1708(?), 1691, 1683, 1675, 1671, 1668-69, 1668, 1649, 1637, 1631, 1620, 1613, 1612, 1611, 1598-99, 1592, 1587, 1584, 1583, 1582, 1576, 1564, 1563(?), 1562, 1558-59, 1542, 1533, 1522, 1506, 1505, 1485, 1473-74, 1438, 1434, 1390(?) 1388(?), 1387, 1377, 1376, 1375-76, 1369, 1346, 1343, 1340, 1335, 1331-33, 1331, 1324, 1305, 1286, 1281, 1274, 1273, 1272, 1272, 1271, 1269, 1265, 1240, 1239, 1229, 986(?), 867, 864, 796(?), 553
Letzte Erdbeben in der Nähe: Keine jüngeren Beben

Beschreibung

The 24-km-wide Aso caldera was formed during four major explosive eruptions from 300,000 to 90,000 years ago. These produced voluminous pyroclastic flows that covered much of Kyushu. The last of these, the Aso-4 eruption, produced more than 600 cu km of airfall tephra and pyroclastic-flow deposits. A group of 17 central cones was constructed in the middle of the caldera, one of which, Naka-dake, is one of Japan's most active volcanoes. It was the location of Japan's first documented historical eruption in 553 AD. The Naka-dake complex has remained active throughout the Holocene. Several other cones have been active during the Holocene, including the Kometsuka scoria cone as recently as about 210 AD. Historical eruptions have largely consisted of basaltic to basaltic-andesite ash emission with periodic strombolian and phreatomagmatic activity. The summit crater of Naka-dake is accessible by toll road and cable car, and is one of Kyushu's most popular tourist destinations.
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Source: GVP Aso volcano information

Aso Fotos

Alaid stratovolcano, Atlasof Island, Northern Kuriles (Photo: Tom Pfeiffer)
Alaid stratovolcano, Atlasof Island, Northern Kuriles (Photo: Tom Pfeiffer)
Antike Inschriften an der Mauer des Paliokastro, die erklärt, dass die antiken Bewohner aus Sicherheits- und Verteidigungsgründen einen Abstand mit ihren Häusern halten müssen. (Photo: Tobias Schorr)
Antike Inschriften an der Mauer des Paliokastro, die erklärt, dass die antiken Bewohner aus Sicherheits- und Verteidigungsgründen einen Abstand mit ihren Häusern halten m...
Alaid volcano on Atlasov Island (Photo: Tom Pfeiffer)
Alaid volcano on Atlasov Island (Photo: Tom Pfeiffer)
Malia Vgethi Vulkan und das westliche Kap Methana (Krasopanagia). (Photo: Tobias Schorr)
Malia Vgethi Vulkan und das westliche Kap Methana (Krasopanagia). (Photo: Tobias Schorr)
 


1997 fatalities
2 tourists were killed by volcanic gas 100 m south of the rim of Crater 1 on 23 November 1997. Since 1980, more than 70 people have been injured by volcanic gases at Aso and have been hospitalized.

1979 fatalities
3 people were killed and 11 injured by ballistic blocks ejected by an explosion that occurred at about 1pm local time on 6 September 1979.

Siehe auch: Sentinel hub | Landsat 8 | NASA FIRMS
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