What kind of volcano is 十勝岳?

十勝岳 is classified as a Stratovolcano(es) in Japan. Its tectonic setting is Subduction zone / Continental crust (> 25 km).

How is seismicity near 十勝岳 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.

日本北海道

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

日本→

Volcano 十勝岳

北海道で最も活発な火山の一つです。1926年5月の小規模な噴火で山頂の一部が崩れて積雪を溶かし、泥流はおよそ25分で25 km先の上富良野と美瑛の農村まで達して144人が亡くなりました（大正泥流）。1962年と1988〜89年にも噴火し、24時間体制で監視されています。

Last Eruption

2004

Erupted since 2000

Summit Elevation

2.1 km

成層火山 · 安山岩 / 玄武岩質安山岩

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

成層火山

十勝岳 is an active Stratovolcano(es) formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Andesite / Basaltic Andesite.

Edifice Type成層火山

Major Rock安山岩 / 玄武岩質安山岩

Tectonic Setting沈み込み帯

Volcanic Arc千島火山弧

Volcanic Dossier

VN #285050

Official catalogue parameters, coordinates, elevation and geotectonic classification.

国日本

火口の座標43.418°, 142.686°

Summit Elevation2.1 km

Subregion千島火山弧

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 →

地域地震プロファイル

北海道

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

地域ハブを開く

よくあるご質問（FAQ）

検証済みの科学的・運用面・緊急対応プロトコル

The most recent eruption of 十勝岳 recorded by the Smithsonian Global Volcanism Program was in 2004.

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