What kind of volcano is Tokachidake?

Tokachidake is classified as a Stratovolcano(es) in Japan. Its tectonic setting is Subduction zone / Continental crust (> 25 km).

How is seismicity near Tokachidake monitored here?

Earthquakes within 50 km of the crater are aggregated from 18 seismic networks and checked against a swarm rule that compares the current rate with this volcano's own 30-day background. Ash advisories come from the VAAC centres that are connected.

JapanHokkaido Island

Steaming summit craters of Tokachidake volcano in Hokkaido, Japan

Photo:JMAvia Smithsonian GVP

Volcano Dossier•GVP #285050

43.42°N, 142.69°E

Erupted since 2000

Japan→

Volcano Tokachidake

One of Hokkaido's most active volcanoes. In May 1926 a small eruption collapsed part of the summit and melted the snowpack; the mudflow raced 25 km down to the farming towns of Kamifurano and Biei in about 25 minutes, killing 144 people. It erupted again in 1962 and 1988–89 and is watched around the clock.

Last Eruption

2004

Erupted since 2000

Summit Elevation

2.1 km

Stratovolcano · Andesite / Basaltic Andesite

Seismic State

Normal Baseline

0 events (1.0x rate)

Interactive Volcano & Seismicity Map

Seismicity within 50 km radius, active VAAC ash plumes, and tectonic plate boundaries.

Recent seismicity within 50 km

0 events in the last 12 h within 25 km of the crater.

No catalogued earthquakes within 50 km in the last 90 days.

Geological & Tectonic Profile

Stratovolcano

Tokachidake is an active Stratovolcano(es) formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Andesite / Basaltic Andesite.

Edifice TypeStratovolcano

Major RockAndesite / Basaltic Andesite

Tectonic SettingSubduction zone

Volcanic ArcKuril Volcanic Arc

Volcanic Dossier

VN #285050

Official catalogue parameters, coordinates, elevation and geotectonic classification.

CountryJapan

Crater Coordinates43.418°, 142.686°

Summit Elevation2.1 km

SubregionKuril Volcanic Arc

Catalog SourceSmithsonian GVP (#285050)

Authoritative Monitoring Infrastructure

All 18 Networks & VAAC →

Seismic ObservatoryJMA

Japan Meteorological Agency (Volcano Observation)

Official Portal

ICAO Aviation Ash Center

Tokyo VAAC (JMA)

Tokyo, Japan

VAAC Advisory Desk

Swarm telemetry correlated across 18 networks against a 30-day baseline.Read Science & Physics →

Regional Seismic Profile

Hokkaido Island

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for Hokkaido Island.

Open Regional Hub

Frequently Asked Questions (FAQ)

Verified scientific, operational, and emergency protocols

The most recent eruption of Tokachidake recorded by the Smithsonian Global Volcanism Program was in 2004.

Catalogue: Smithsonian Institution, Global Volcanism Program.Smithsonian GVP profile