Kostakan

Pyroclastic cone(s) in Russia

Last Eruption: 1350

Key Facts

Elevation

1,150 m (3,773 ft)

Type

Pyroclastic cone(s)

Location

53.833°, 158.052°

Region

Eastern Kamchatka Volcanic Arc

Rock Type

Basalt / Picro-Basalt

Tectonic Setting

Subduction zone

Location

Loading map...

Overview

A group of basaltic cinder cones lies south of Bakening volcano, west of the Srednaya Avacha (Middle Avacha) river valley. They are part of a broad zone of regional late Pleistocene to Holocene basaltic volcanism west of the Eastern volcanic zone of Kamchatka that extends from the Kostakan Lake area to the south. Several of the cinder cones are breached by lava flows, some of which extend into the Srednaya Avacha valley.

The highest-elevation vent, Zmeya crater, was constructed within a landslide scarp. An unnamed maar is located about 2 km S of Kostakan Lake. Eruptions have occurred during two time periods, between about 11,000 to 7,000 years ago and between about 1,200 and 600 years ago.

Volcanic Hazards & Risk Assessment

Primary Hazards

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	676 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: 300122
•Evidence: Eruption Dated
•Epoch: Holocene

About the Photo

A N-S-trending chain of scoria cones lies in the Kostakan valley south of Bakening volcano. The 600-year-old Glavny scoria cone (left center) is surrounded by its lava flow, which dammed a small river to form beautiful Kostakan lake. Two small vegetated early Holocene cones lie along the opposite side of the lake.

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