Aniakchak, United States
Aniakchak is a caldera in the United States, 1,341 m (4,400 ft) high. Its last known eruption: 1900 to 1963. NOAA records 1 significant eruption here.
Aniakchak on the map
Aniakchak 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
Now
From the USGS Volcano Hazards Program, read 22:38 UTC. USGS threat ranking: High Threat.
Normal / Green Alaska Volcano Observatory rates Aniakchak at alert level Normal, aviation color code Green, since 2026-05-05 22:31 UTC.
AVO Aniakchak GREEN/NORMAL - Port Heiden Receive Facility repairs have sufficiently restored power, moving monitoring status of Aniakchak Volcano from UNASSIGNED to GREEN/NORMAL
The volcano
- Type
- Caldera
- Elevation
- 1,341 m (4,400 ft)
- Country
- United States
- Region
- Alaska Peninsula
- Summit
- 56.880° N, 158.170° W
- Last known eruption
- 1900 to 1963
- Holocene activity known from
- Historical
- Smithsonian volcano number
- 312090
Significant eruptions
1 on record, newest first.
Around it
The volcanoes within 300 km.
Earthquakes near AniakchakVolcanic 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.