World Map › Zaozan [Zaosan]
Volcano
Zaozan [Zaosan]
Volcanic complex · 1,841 m · Japan
![Zaozan [Zaosan]](https://thumb.wikimedia.org/wikipedia/commons/thumb/f/f3/Mount_Za%C5%8D_and_Sakura_01.jpg/960px-Mount_Za%C5%8D_and_Sakura_01.jpg)
Zaozan [Zaosan] sits on the Okhotsk Plate, in a subduction zone. 51 eruptions are known since the end of the last ice age, the most recent in 1940. Its major eruptions caused at least 3 deaths.
- Elevation
- 1,841 m
- Type
- Volcanic complex
- Tectonic Setting
- Subduction zone, continental crust
- Dominant Rock
- Andesite / Basaltic Andesite
- Plate
- Okhotsk Plate
- Country
- Japan
- Last Eruption
- 1940
- Known Eruptions (Holocene)
- 51
- Max. Explosivity (VEI)
- 4
- Known Fatalities
- 3
Nearby Cities
Cities of more than 20,000 people within 100 km. At least 272,000 people live in those within 30 km.
- 18 kmYamagata272,000 people
- 45 kmFukushima294,000 people
- 53 kmSendai2,250,000 people
- 82 kmKōriyama341,000 people
- 82 kmTsuruoka100,000 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