Volcanoes of the United States

Adams, United States

Stratovolcano · 3,742 m (12,277 ft) · US-Washington

Adams is a stratovolcano in the United States, 3,742 m (12,277 ft) high. Its last known eruption: aD 1 to 1499. NOAA records no significant eruption here.

Adams on the map

Adams 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 11:49 UTC. USGS threat ranking: High Threat.

Normal / Green Cascades Volcano Observatory rates Adams at alert level Normal, aviation color code Green, since 2024-10-03 19:37 UTC.

CVO Mount Adams GREEN/NORMAL - The USGS Cascades Volcano Observatory and Pacific Northwest Seismic Network located six earthquakes at Mount Adams, ranging from magnitudes 0.9 to 2.0.

The latest noticeThe observatory’s page

The volcano

Type
Stratovolcano
Elevation
3,742 m (12,277 ft)
Region
US-Washington
Summit
46.206° N, 121.490° W
Last known eruption
AD 1 to 1499
Holocene activity known from
Tephrochronology
Smithsonian volcano number
321040

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 AdamsVolcanic 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.