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Hakkoda Volcano | John Seach
Honshu, Japan
40.65 N, 140.88 E
summit elevation 1585 m
Stratovolcanoes
Kita-Hakkoda volcanic group is located in northern Honshu, Japan, and consists of eleven small stratovolcanoes and lava domes south of Matsu Bay. Each volcano has produced strombolian, phreatic, vulcanian eruptions, and lava flows.
A total of 15 cubic km of lava has been erupted over the past 400,000 years. The rate of eruption has declined over the past 100,000 years.
There are well preserved craters at Hakkoda-Odake, Ido-dake, Tsurugi-dake.
Solfatara and hot springs are located at the volcano.
1997 Fatalities
On 12th July 1997 three soldiers were killed at the volcano after entering a depression (18 m long, 11 m wide, and 8 m deep), which contained high levels of carbon dioxide. Local farmers reported dead animals in many depressions around the volcano. Subsequent analysis showed the gases contained up to 20 percent CO2 by volume.
Further Reading
Yamamoto, M. and Miura, S., 2014, December. Volcanic Activities of Hakkoda Volcano after the 2011 Tohoku Earthquake. In AGU Fall Meeting Abstracts (Vol. 2014, pp. S11E-4399).
Hernández Perez, P., Notsu, K., Tsurumi, M., Mori, T., Ohno, M., Shimoike, Y., Salazar, J. and Pérez, N., 2003. Carbon dioxide emissions from soils at Hakkoda, north Japan. Journal of Geophysical Research: Solid Earth, 108(B4).
Hakkoda Volcano Eruptions
1550 ±100