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Zao Volcano | John Seach
Honshu, Japan
38.15 N, 140.45 E
summit elevation 1841 m
complex volcano
Zao volcano is the northern most active volcano in Honshu.
The volcano forms part of the Ushiro Tateyama mountain Range. Other mountains in the range include: Shiroumadake (2932m), Shakushidake (2812m), Hakuba Yarigatake (2903m), Karamatsudake (2696m), Goryudake (2814m).
Okama Crater is a well known tourist destination at the volcano. The lake is 360 m wide and 60 m deep with a pH of 1.3 and has been the site of the most recent eruptions. Goshikidake is post caldera pyroclastic cone.
2011 Great Earthquake
Tthe Great 2011 Earthquake (magnitude 8.9) occurred 170 km east of the volcano on 11th March 2011.
Further Reading
Sakayori, A., 1992. Geology and petrology of Zao volcano. Journal of Mineralogy, Petrology and Economic Geology, 87(11), pp.433-444.
Tiba, T., 1961. Petrology of Zao volcano. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 46(3), pp.73-82.
Zao Volcano Eruptions
1940, 1939?, 1927?, 1905, 1897?, 1896, 1895, 1895, 1894, 1890?, 1873, 1867, 1833, 1831, 1830, 1821, 1809, 1806, 1804, 1796, 1794, 1694, 1670, 1669, 1668, 1641, 1630, 1623-24, 1620, 1350?, 1331-33?, 1230, 1227, 1183, 884, 773?