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Volcanoes in United States

Volcanoes at an elevated alert level (orange or red) according to the USGS Volcano Hazards Program, and volcanic alerts reported by GDACS.

Sources: USGS Volcano Hazards Program, GDACS. Entries are copied from official feeds and are not verified by alerts.live. Follow the instructions of local authorities.

Open the live map Countries: United States

Live counts

1active now
1Last 24 hours
1Last 7 days
1Last 30 days

Last alert:

30-day snapshot

2026-09-25: 02026-09-26: 02026-09-27: 02026-09-28: 02026-09-29: 02026-09-30: 02026-10-01: 02026-10-02: 02026-10-03: 02026-10-04: 02026-10-05: 02026-10-06: 02026-10-07: 02026-10-08: 02026-10-09: 02026-10-10: 02026-10-11: 02026-10-12: 02026-10-13: 02026-10-14: 02026-10-15: 02026-10-16: 02026-10-17: 02026-10-18: 02026-10-19: 02026-10-20: 02026-10-21: 02026-10-22: 02026-10-23: 12026-10-24: 0

Busiest day: 2026-10-23 (1)

By type

Volcano alert level raised1

Active now

EventLevelAreaCountriesStartUntilSource
Volcano alert level raisedSevereGreat SitkinUnited StatesUSGS Volcano Hazards Program

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Descriptive, not a safety score. alerts.live counts and maps events reported by public sources. It does not rate how safe a place is. Informational only, not official: follow local authorities.

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