Isanotski, United States

Stratovolcano · 2,446 m (8,025 ft) · Aleutian Is

Isanotski is a stratovolcano in the United States, 2,446 m (8,025 ft) high. Its last known eruption: 1800 to 1899. NOAA records no significant eruption here.

Isanotski on the map

Isanotski 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

Now

From the USGS Volcano Hazards Program, read 09:31 UTC. USGS threat ranking: Low Threat.

Normal / Green Alaska Volcano Observatory rates Isanotski at alert level Normal, aviation color code Green.

The observatory’s page

The volcano

Type: Stratovolcano
Elevation: 2,446 m (8,025 ft)
Country: United States
Region: Aleutian Is
Summit: 54.765° N, 163.723° W
Last known eruption: 1800 to 1899
Holocene activity known from: Historical
Smithsonian volcano number: 311370

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 Isanotski Volcanic ash advisories 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. Alert levels, color codes and notices from the USGS Volcano Hazards Program and its observatories, public domain. Volcano numbers are the Smithsonian Institution’s Global Volcanism Program’s.