5.1
Earthquake Details: 208 km ESE of Attu Station, Alaska
Aug 23, 2026, 23:20:31
A magnitude 5.1 earthquake occurred near 208 km ESE of Attu Station, Alaska on Aug 23, 2026 at 23:20:31. The seismic event was recorded at a depth of 12 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Technical Details
Depth12 km
Significance400
Latitude51.9140
Longitude175.8340
Event IDattk8wu7
Magnitude5.1
Updated:Aug 23, 2026, 23:29:12 UTC
External Resources
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Time & depth
- Local time
- Aug 23, 2026, 23:20:31
- UTC
- Aug 23, 2026, 23:20:31 UTC
12 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M4.0232 km ESE of Attu Station, AlaskaBeforeM4.0231 km ESE of Attu Station, AlaskaBeforeM3.7236 km ESE of Attu Station, AlaskaBeforeM3.8234 km ESE of Attu Station, AlaskaBeforeM4.3261 km ESE of Attu Station, AlaskaBeforeM4.0263 km ESE of Attu Station, AlaskaBeforeM3.6234 km ESE of Attu Station, AlaskaBeforeM3.5236 km ESE of Attu Station, AlaskaBeforeM5.0228 km ESE of Attu Station, AlaskaAfterM3.6233 km ESE of Attu Station, AlaskaAfterM3.9233 km ESE of Attu Station, AlaskaAfterM3.9229 km ESE of Attu Station, 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 23, 2026, 23:29 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.