What kind of volcano is Bezymianny?

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

How is seismicity near Bezymianny 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.

Explosive horseshoe crater and growing dome of Bezymianny volcano

Photo:Yuri Doubikvia Smithsonian GVP

Volcano Dossier•GVP #300250

55.97°N, 160.59°E

Erupted since 2000

Russia→

Volcano Bezymianny

Considered extinct until 1955. Its 1956 eruption blew out the eastern flank in a lateral blast that later became the key to understanding Mount St. Helens in 1980. A lava dome has grown in the crater ever since, with explosive eruptions several times a decade.

Last eruption

2025

Erupted since 2000

Summit

2.9 km

Stratovolcano · Andesite / Basaltic Andesite

Activity

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

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

Edifice TypeStratovolcano

Major rockAndesite / Basaltic Andesite

TectonicsSubduction zone

Volcanic ArcEastern Kamchatka Volcanic Arc

Volcano Dossier

VN #300250

Official catalogue parameters, coordinates, elevation and geotectonic classification.

CountryRussia

Crater Coordinates55.972°, 160.595°

Summit2.9 km

SubregionEastern Kamchatka Volcanic Arc

Catalog SourceSmithsonian GVP (#300250)

Authoritative Monitoring Infrastructure

All 18 Networks & VAAC →

Seismic ObservatoryKVERT / GSRAS

Kamchatka Volcanic Eruption Response Team / GSRAS

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

Kamchatka & Kuril-Kamchatka Trench

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for Kamchatka & Kuril-Kamchatka Trench.

Open Regional Hub

Frequently Asked Questions (FAQ)

Verified scientific, operational, and emergency protocols

The most recent eruption of Bezymianny recorded by the Smithsonian Global Volcanism Program was in 2025.

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