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Random pictures
Area near Aso's Nakadake crater devastated by the explosion on 8 Oct 2016 (image: JMA)
Saturday, Oct 08, 2016
A very strong explosion occurred at the volcano at 01:46 local time on 8 Oct 2016, generating an ash column that rose to an altitude of approx. 11,000 m making it one of the largest if not the largest in Japan in 20 years. ... [more]
Tuesday, Mar 08, 2016
JMA reported that at 0656 on 4 March an explosion at Asosan’s Nakadake Crater generated a milky-white plume that rose 1 km above the crater rim; white plumes rose 300 m afterwards. ... [more]

Aso volcano

caldera 1592 m / 5,223 ft
central Kyushu, Japan, 32.88°N / 131.11°E
Current status: minor activity or eruption warning (3 out of 5)
Aso webcams / live data
Aso volcano videos
Aso volcano books
Last update: 15 Oct 2016
Typical eruption style: explosive
Aso volcano eruptions: 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 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)
TimeMag. / DepthDistanceLocation
Fri, 16 Jun
Fri, 16 Jun 06:17 UTCM 2.6 / 9.8 km13 kmNE KUMAMOTO PREF
Wed, 7 Jun
Wed, 7 Jun 09:20 UTCM 2.8 / 10.2 km16 kmNE KUMAMOTO PREF
Tue, 6 Jun
Tue, 6 Jun 08:04 UTCM 2.7 / 10.8 km34 kmNW KUMAMOTO PREF
Thu, 1 Jun
Thu, 1 Jun 04:04 UTCM 2.9 / 11.3 km29 kmNW KUMAMOTO PREF
Thu, 1 Jun 03:42 UTCM 2.6 / 11 km28 kmNW KUMAMOTO PREF
View all recent quakes
Aso 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.

Background:

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 Photos:



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.

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