World Map › Hachimantai
Volcano
Hachimantai
Stratovolcano · 1,613 m · Japan
Hachimantai sits on the Okhotsk Plate, in a subduction zone. 2 eruptions are known since the end of the last ice age, the most recent in 5,350 BCE.
- Elevation
- 1,613 m
- Type
- Stratovolcano
- Tectonic Setting
- Subduction zone, continental crust
- Dominant Rock
- Andesite / Basaltic Andesite
- Plate
- Okhotsk Plate
- Country
- Japan
- Last Eruption
- 5,350 BCE
- Known Eruptions (Holocene)
- 2
Nearby Cities
Cities of more than 20,000 people within 100 km.
- 35 kmMorioka295,000 people
- 71 kmAkita320,000 people
- 75 kmHirosaki175,000 people
- 85 kmHachinohe239,000 people
- 97 kmAomori298,000 people
Eruption Timeline
Each bar is an eruption; its height shows its explosivity (VEI 0 to 8).
Eruption 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