2.5
Earthquake Details: 224 km SE of Nikolski, Alaska
Aug 20, 2026, 16:33:47
A magnitude 2.5 earthquake occurred near 224 km SE of Nikolski, Alaska on Aug 20, 2026 at 16:33:47. The seismic event was recorded at a depth of 10 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Technical Details
Depth10 km
Significance96
Latitude51.7614
Longitude-166.1821
Event IDus6000tmnq
Magnitude2.5
Updated:Aug 22, 2026, 13:11:27 UTC
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- Aug 20, 2026, 16:33:47
- UTC
- Aug 20, 2026, 16:33:47 UTC
10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M2.7137 km SW of Nikolski, AlaskaAfterM2.777 km SE of Akutan, AlaskaAfterM2.775 km ESE of Akutan, AlaskaAfterM3.0105 km SSW of Nikolski, AlaskaAfterM2.990 km SSE of Akutan, AlaskaAfterM2.7198 km SE of Akutan, AlaskaAfterM2.990 km SE of King Cove, AlaskaAfterM2.981 km SE of King Cove, AlaskaAfterM2.8154 km SSE of Atka, AlaskaAfterM3.9134 km E of Atka, AlaskaAfterM2.9105 km SE of False Pass, AlaskaAfterM4.8195 km SE of Akutan, AlaskaAfter
Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Aug 22, 2026, 13:11 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.