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Aso volcano
caldera 1592 m / 5,223 ft
central Kyushu, Japan, 32.88°N / 131.11°E
Current status: erupting (4 out of 5)
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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
Typical eruption style:
explosive
Last earthquakes nearby
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Aso volcano news & activity updates

Aso volcano (Kyushu, Japan): ash venting and crater incandescence

Saturday Aug 08, 2015 17:04 PM | BY: T

Ash venting from Aso volcano (Nakadake crater)
Ash venting from Aso volcano (Nakadake crater)
Incandescence at the main vent
Incandescence at the main vent
The eruption from Aso volcano's Nakadake crater continues. During the past day, several phases of ash emissions occurred. At night, incandescence can be seen at the vent.
The activity is not typical strombolian with discrete explosions, but rather continuous phases of jet-like venting of ash. Its cause is probably phreatomagmatic - the release of hot ash and gas as water and magma interact at depth.
Previous news

Friday, May 22, 2015
Overall, activity has decreased and incandescence has not been seen during the past nights. The current activity is dominated by strong steam and gas emissions from crater 1 and, to a lesser degree, from crater 2 in the northern end of Nakadake crater complex. ... [more]
Exlosion at Nakadake volcano (Aso volcano) this morning
Saturday, Apr 25, 2015
Mild to moderate strombolian explosions from the Nakadake crater have become continuous. [more]
Wednesday, Apr 22, 2015
Mild strombolian activity with low-level ash emissions continue from the Nakadake crater. [more]
Glow from Aso's Nakadake crater
Friday, Mar 27, 2015
Explosive activity and ash emissions have decreased or ceased. Bright glow and intense steaming/degassing from the main vent in the Nakadake crater however suggest the presence of a small lava lake. [more]
Weak strombolian eruption at Aso's Nakadake crater this morning
Monday, Mar 16, 2015
Weak strombolian activity from two vents continue at the Nakadake crater, accompanied by abundant steam and minor ash emissions. [more]

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