What kind of volcano is Monte Iwate?

Monte Iwate is classified as a Complex in Japan. Its tectonic setting is Subduction zone / Continental crust (> 25 km).

How is seismicity near Monte Iwate 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.

Snow-streaked cone of Mount Iwate rising above Morioka, Japan

Photo:Lee Siebertvia Smithsonian GVP

Volcano Dossier•GVP #283240

39.85°N, 141.00°E

Erupted in the 20th century

Japón→

Volcano Monte Iwate

Llamado el «Fuji de Nanbu», este cono de 2.038 m domina la ciudad de Morioka. Su colada de lava de Yakehashiri, de 1732, sigue tan desnuda que está protegida como monumento natural nacional, y en 1998 enjambres sísmicos y la hinchazón de la montaña cerraron sus senderos durante años: un susto que lo convirtió en uno de los volcanes más vigilados de Japón.

Last Eruption

1919

Erupted in the 20th century

Summit Elevation

2.0 km

Complejo volcánico · Basalto / Picrobasalto

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.

Hora	Magnitud	Epicentro / Ubicación	Distancia	Profundidad
3d hace	M4.3	15 km NNE of Semboku, Japan	19 km	120.4 km
56d hace	M2.7	秋田県内陸北部, Japan	38 km	10 km
63d hace	M3.5	EASTERN HONSHU, JAPAN (JMA)	38 km	10 km

Geological & Tectonic Profile

Complejo volcánico

Monte Iwate is an active Complex formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Basalt / Picro-Basalt.

Edifice TypeComplejo volcánico

Major RockBasalto / Picrobasalto

Tectonic SettingZona de subducción

Volcanic ArcArco volcánico Northeast Japan

Volcanic Dossier

VN #283240

Official catalogue parameters, coordinates, elevation and geotectonic classification.

PaísJapón

Coordenadas del cráter39.853°, 141.001°

Summit Elevation2.0 km

SubregionArco volcánico Northeast Japan

Catalog SourceSmithsonian GVP (#283240)

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 →

Perfil sísmico regional

Costa de Sanriku y Tohoku

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for Costa de Sanriku y Tohoku.

Abrir centro regional

Preguntas Frecuentes (FAQ)

Protocolos científicos, operativos y de emergencia verificados

The most recent eruption of Monte Iwate recorded by the Smithsonian Global Volcanism Program was in 1919.

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