Volcano profile

Japan

Myokosan.

Volcano profile for Myokosan in Japan, including its current status, catalog data, nearby earthquakes and live map layers.

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Current status
No current eruption report
Volcano type
Stratovolcano
Elevation
2,454 m
Last documented eruption
750 BCE
Explosivity (VEI)
VEI 5 highest recorded · latest VEI 4 · More about the VEI
Coordinates
36.891°, 138.114°
GVP number
283100

Live map

Live map around Myokosan

Satellites & ash clouds

Map options

Airports and nuclear plants provide geographic context. Being in or near an area does not establish closure, damage or a specific hazard.

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No current eruption report

Japan

Myokosan

Stratovolcano

Elevation
2,454 m
Last documented eruption
750 BCE
No current eruption report

No current report does not mean extinct or safe. Source coverage varies between volcanoes.

Geography & tectonics
Coordinates
36.891°, 138.114°
Volcanic region (GVP)
Northeast Japan Volcanic Arc
Tectonic setting
Subduction zone / Continental crust (> 25 km)
GVP
283100
Documented eruptions · Nearby earthquakes ↓

Source: Smithsonian Global Volcanism Program

This display is not an official warning. Follow information from the responsible authorities when making local decisions.

Profile

Myokosan · Japan

Documented eruptions

All catalogued eruptions, newest first. Historical records are incomplete; missing values are unknown. VEI describes eruption explosivity.

StartEndVEIReport status
750 BCENot available—Confirmed eruption
1200 BCEUncertain datingNot available—Confirmed eruption
2100 BCEUncertain datingNot available—Confirmed eruption
2750 BCEUncertain datingNot available4Confirmed eruption
2900 BCEUncertain datingNot available—Confirmed eruption
3450 BCEUncertain datingNot available—Confirmed eruption
3700 BCEUncertain datingNot available—Confirmed eruption
4000 BCEUncertain datingNot available—Confirmed eruption
4300 BCEUncertain datingNot available—Confirmed eruption
4750 BCEUncertain datingNot available5?Confirmed eruption

Source: Smithsonian GVP · Dataset date: 2026-11-13

Nearby earthquakes

Last 7 days · 100 km · up to 10 events. Proximity does not establish a volcanic cause.

  • No recorded events in this selection.
Nearby earthquakes ↗

QuakeMap24

Volcano at a glance

Map view with the current report status and volcano elevation.

Myokosan · No current eruption report · 2,454 m

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Shinshu-Matsumoto AirportJapan · MMJ · RJAF
    82.3 kmStraight-line distance
  • Toyama Kitokito AirportJapan · TOY · RJNT
    86.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-13

Nuclear power plants

  • Kashiwazaki Kariwa nuclear power plantJapanUnder construction · Out of operation · Operating at dataset dateReactor units at site: 7
    73.1 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Nearby places

AraiJapan · 15.7 km

MyokoJapan · 19.5 km

IiyamaJapan · 22.9 km

Source: GeoNames · Radius: 50 km · Straight-line distance

QuakeMap24

Sources & data dates

Core data comes from the Smithsonian Global Volcanism Program and USGS. Map layers and live aircraft are loaded from the sources identified on the page.

This display is not an official warning. Follow information from the responsible authorities when making local decisions.

VAAC / NOAA NWS

Satellite layers · Last successful retrieval: Nov 13, 2026, 12:23 PM UTC