Volcanoes of the United States

Ukinrek Maars, United States

Maar · 91 m (299 ft) · Alaska Peninsula

Ukinrek Maars is a maar in the United States, 91 m (299 ft) high. Its last known eruption: 1964 or later. NOAA records no significant eruption here.

Ukinrek Maars on the map

Ukinrek Maars 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 17:02 UTC. USGS threat ranking: Moderate Threat.

Normal / Green Alaska Volcano Observatory rates Ukinrek Maars at alert level Normal, aviation color code Green, since 2022-10-19 23:05 UTC.

AVO Ukinrek Maars GREEN/NORMAL - Aviation color code and alert level changed to GREEN/NORMAL due to reconnection with seismic stations

The latest noticeThe observatory’s page

The volcano

Type
Maar
Elevation
91 m (299 ft)
Region
Alaska Peninsula
Summit
57.834° N, 156.520° W
Last known eruption
1964 or later
Holocene activity known from
Historical
Smithsonian volcano number
312131

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 Ukinrek MaarsVolcanic 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.