M 4.0 - 99 km SSE of Adak, Alaska
- 2025-03-21 16:03:51 (UTC)
- 51.052°N 176.058°W
- 35.0 km depth
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- ShakeMap
Immi 
Estimated Intensity Map Origin - Review Status
- REVIEWED
- Magnitude
- 4.0 mb
- Depth
- 35.0 km
- Time
- 2025-03-21 16:03:51 UTC
View Nearby Seismicity - Time Range
± Three Weeks - Search Radius
250.0 km - Magnitude Range
≥ 1.0
Contributors US
USGS National Earthquake Information Center, PDE