Bolshoi Semiachik, Russia

Stratovolcano · 1,720 m (5,643 ft) · Kamchatka

Bolshoi Semiachik is a stratovolcano in Russia, 1,720 m (5,643 ft) high. Its last known eruption: bC (Holocene). NOAA records no significant eruption here.

Bolshoi Semiachik on the map

Bolshoi Semiachik and the volcanoes within 300 km, colored by when each last erupted.

Since 1964
1900 to 1963
1800s
AD 1 to 1799
Before AD 1, or undated

Open the live map with volcanic ash advisories and webcams

The volcano

Type: Stratovolcano
Elevation: 1,720 m (5,643 ft)
Country: Russia
Region: Kamchatka
Summit: 54.320° N, 160.020° E
Last known eruption: BC (Holocene)
Holocene activity known from: Radiocarbon
Smithsonian volcano number: 300150

Significant eruptions

NOAA records eruptions that killed, did damage, were very large, or set off a tsunami or earthquake.

None on record.

Around it

The volcanoes within 300 km.

Earthquakes near Bolshoi Semiachik Ash advisories and webcams on the live map

Sources

Volcanoes and significant eruptions from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. Volcano numbers are the Smithsonian Institution’s Global Volcanism Program’s.