World Map › Ontakesan
Volcano
Ontakesan
Volcanic complex · 3,067 m · Japan
Ontakesan sits on the Amur Plate, in a subduction zone. 5 eruptions are known since the end of the last ice age, the most recent in 2014. Its major eruptions caused at least 84 deaths.
- Elevation
- 3,067 m
- Type
- Volcanic complex
- Tectonic Setting
- Subduction zone, continental crust
- Dominant Rock
- Andesite / Basaltic Andesite
- Plate
- Amur Plate
- Country
- Japan
- Last Eruption
- 2014
- Known Eruptions (Holocene)
- 5
- Max. Explosivity (VEI)
- 3
- Known Fatalities
- 84
Nearby Cities
Cities of more than 20,000 people within 100 km.
- 59 kmMatsumoto225,000 people
- 83 kmGifu413,000 people
- 93 kmToyama333,000 people
- 97 kmTakaoka170,000 people
- 97 kmNagoya3,230,000 people
Eruption Timeline
Each bar is an eruption; its height shows its explosivity (VEI 0 to 8).
Eruption Deadly Eruption (NOAA) Uncertain Date
Sources : Global Volcanism Program, 2026. Volcanoes of the World (v. 5.4.0; 7 Aug 2026), Smithsonian Institution, doi:10.5479/si.GVP.VOTW5-2026.5.4 (volcano.si.edu) · NOAA NCEI · USGS · Wikidata