2.8
Earthquake Details: 52 km S of Atka, Alaska
Aug 23, 2026, 07:56:31
A magnitude 2.8 earthquake occurred near 52 km S of Atka, Alaska on Aug 23, 2026 at 07:56:31. The seismic event was recorded at a depth of 51.72 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Technical Details
Depth51.72 km
Significance121
Latitude51.7280
Longitude-174.3301
Event IDus6000tn78
Magnitude2.8
Updated:Aug 26, 2026, 05:23:15 UTC
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- Aug 23, 2026, 07:56:31
- UTC
- Aug 23, 2026, 07:56:31 UTC
51.72 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M2.8125 km SW of Adak, AlaskaBeforeM2.7270 km SW of Adak, AlaskaBeforeM2.855 km S of Atka, AlaskaBeforeM2.7137 km SW of Nikolski, AlaskaAfterM3.0105 km SSW of Nikolski, AlaskaAfterM3.232 km SW of Adak, AlaskaAfterM2.7191 km WSW of Adak, AlaskaAfterM3.669 km SSE of Adak, AlaskaAfterM3.763 km SE of Adak, AlaskaAfterM2.8119 km SW of Adak, AlaskaAfterM2.8154 km SSE of Atka, AlaskaAfterM3.9134 km E of Atka, 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 26, 2026, 05:23 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.