What kind of volcano is Tokachi-dake?

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

How is seismicity near Tokachi-dake 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.

JaponÎle d'Hokkaidō

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

Japon→

Volcano Tokachi-dake

L'un des volcans les plus actifs d'Hokkaido. En mai 1926, une petite éruption a fait s'effondrer une partie du sommet et fondre le manteau neigeux ; la coulée de boue a dévalé 25 km jusqu'aux bourgs agricoles de Kamifurano et Biei en 25 minutes environ, tuant 144 personnes. Il est de nouveau entré en éruption en 1962 et en 1988–89 et il est surveillé en permanence.

Last Eruption

2004

Erupted since 2000

Summit Elevation

2.1 km

Stratovolcan · Andésite / Andésite basaltique

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

Stratovolcan

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

Edifice TypeStratovolcan

Major RockAndésite / Andésite basaltique

Tectonic SettingZone de subduction

Volcanic ArcArc volcanique des Kouriles

Volcanic Dossier

VN #285050

Official catalogue parameters, coordinates, elevation and geotectonic classification.

PaysJapon

Coordonnées du cratère43.418°, 142.686°

Summit Elevation2.1 km

SubregionArc volcanique des Kouriles

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 →

Profil sismique régional

Île d'Hokkaidō

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for Île d'Hokkaidō.

Ouvrir le pôle régional

Questions fréquentes (FAQ)

Protocoles scientifiques, opérationnels et d’urgence vérifiés

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

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