Komarov

Stratovolcano in Russia

Last Eruption: 950

Key Facts

Elevation

2,065 m (6,775 ft)

Type

Stratovolcano

Location

55.033°, 160.725°

Region

Eastern Kamchatka Volcanic Arc

Rock Type

Basalt / Picro-Basalt

Tectonic Setting

Subduction zone

Location

Loading map...

Overview

Komarov volcano is a complex structure along the Gamchen ridge. The summit area includes two irregular craters ~300m in diameter. Lengthy Holocene lava flows extend to the east and west.

Growth began about 1,500 years ago following cessation of activity at Vysoky volcano. No reported eruptions are known, but the summit region has undergone extensive hydrothermal alteration, and fumarolic areas occur there and on the northern and southern flanks.

Volcanic Hazards & Risk Assessment

Primary Hazards

Pyroclastic flows
Lava flows
Volcanic bombs and ballistics
Lahars and mudflows

Risk Level

Population at RiskModerate

Infrastructure RiskModerate

Aviation RiskSignificant

Geological Composition & Structure

Rock Types

Primary

Basalt / Picro-Basalt

Silica Content

Low (45-52% SiO₂)

Tectonic Setting

Subduction zone

Formed by oceanic plate subduction, typically producing explosive eruptions due to water-rich magmas.

Age & Formation

Epoch

Holocene

Evidence

Eruption Dated

Eruption Statistics & Analysis

Metric	Value	Global Ranking	Significance
Total Recorded Eruptions	Unknown	Low	Moderately active volcano
Maximum VEI	VEI Unknown	Minor	Local impact potential
Recent Activity	1076 years ago	Historical	Historically active

Monitoring & Alert Status

Monitoring Networks

Global Volcanism Program

International eruption database

Current Status

Normal

No recent activity. Routine monitoring continues.

Nearby Volcanoes in Northwestern Pacific Volcanic Regions

Regional Volcanic Activity

The Northwestern Pacific Volcanic Regions contains multiple active volcanic systems. Cross-regional magma interactions and tectonic stresses can influence eruption patterns across the entire arc. Monitor regional seismic activity and volcanic alerts.

Quick Info

•Smithsonian ID: 300220
•Evidence: Eruption Dated
•Epoch: Holocene

About the Photo

Hydrothermally altered rocks form the summit ridge of Komarov in this view from the east. Komarov is a complex structure in the northern half of the Gamchen ridge and lies at the western end of a 2.5 x 4 km caldera. Holocene lava flows, such as the one in the foreground, extend beyond the caldera to the east and west.

Copyrighted photo by Vera Ponomareva (Holocene Kamchataka volcanoes; http://www.kscnet.ru/ivs/volcanoes/holocene/main/main.htm).