Kupreanof, United States
Kupreanof is a stratovolcano in the United States, 1,895 m (6,217 ft) high. Its last known eruption: 1964 or later. NOAA records no significant eruption here.
Kupreanof on the map
Kupreanof 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 06:11 UTC. USGS threat ranking: Moderate Threat.
Unassigned / Unassigned Alaska Volcano Observatory rates Kupreanof at alert level Unassigned, aviation color code Unassigned, since 2026-09-11 19:48 UTC.
AVO Kupreanof UNASSIGNED/UNASSIGNED - Mount Kupreanof relatively quiet; volcano lowered to UNASSIGNED.
The volcano
- Type
- Stratovolcano
- Elevation
- 1,895 m (6,217 ft)
- Country
- United States
- Region
- Alaska Peninsula
- Summit
- 56.011° N, 159.797° W
- Last known eruption
- 1964 or later
- Holocene activity known from
- Historical
- Smithsonian volcano number
- 312060
From Wikipedia
Mount Kupreanof is a stratovolcano on the Alaska Peninsula, United States. It is the largest and the northeasternmost in a group of five volcanoes opposite from Stepovak Bay. Mount Kupreanof displays extremely strong fumarole activity and its latest eruption in 1987 produced minor steam and ash emission. This is the only known historical eruption from Mount Kupreanof, although the event is considered questionable according to sources.
Text from Wikipedia, “Mount Kupreanof”, licensed CC BY-SA 4.0. Quoted as written; the full article has the rest.
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 KupreanofAsh 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 2026-10-01. 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.