Volcano
Semisopochnoi
- Country
- United States
- Type
- Stratovolcano
- Elevation
- 1221 m
- Last eruption
- 2023
Volcano alert levels
- Alaska Volcano ObservatoryGREEN / NORMAL
Issued
USGS gives the aviation colour code and the ground alert level.
Volcano data: Global Volcanism Program, Smithsonian Institution
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Earthquakes within 30 km, past 30 days
No earthquakes within 30 km in the past 30 days.