Ontakesan

Ontakesan (Japan) is a complex volcano. It rises to 3,067 m above sea level. The GVP records 4 confirmed eruptions in the Holocene, the latest in 2014.

Elevation: 3,067 m
Last eruption: 2014
Confirmed eruptions: 4
Max VEI: 3
Country: Japan
Location: 35.89° N, 137.48° E
Region (GVP): Nankai Volcanic Arc
GVP type: Complex
Tectonic setting: Subduction zone / Continental crust (> 25 km)
Main rock type: Andesite / Basaltic Andesite

Show on the timeline GVP entry ↗

Other volcanoes and strong earthquakes within 300 km

Eruption history

VEI – Volcanic Explosivity Index: 0 = lava outpouring, 4 = like Eyjafjallajökull 2010, 6 = like Pinatubo 1991, 7 = like Tambora 1815. The scale is logarithmic – each step is about 10 times more material.

Start	End	VEI	Vent and dating
27 September 2014	14 October 2014	3	Summit crater · Observations: Reported
24 March 2007	—	0	1979 Crater #7 · Observations: Reported
13 May 1991	16 May 1991	0	1979 Crater #7 · Observations: Reported
28 October 1979	25 April 1980	2	200 m SW of Kengamine · Observations: Reported

Data: Global Volcanism Program, Smithsonian Institution (#283040)