5.0
Earthquake Details: 231 km ESE of Attu Station, Alaska
Aug 23, 2026, 23:20:34
A magnitude 5.0 earthquake occurred near 231 km ESE of Attu Station, Alaska on Aug 23, 2026 at 23:20:34. The seismic event was recorded at a depth of 8.129 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Technical Details
Depth8.129 km
Significance385
Latitude52.1915
Longitude176.4305
Event IDus6000tn19
Magnitude5.0
Updated:Aug 30, 2026, 04:47:30 UTC
External Resources
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Time & depth
- Local time
- Aug 23, 2026, 23:20:34
- UTC
- Aug 23, 2026, 23:20:34 UTC
8.129 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M3.1232 km ESE of Attu Station, AlaskaAfterM3.6233 km ESE of Attu Station, AlaskaAfterM3.2231 km ESE of Attu Station, AlaskaAfterM3.1232 km ESE of Attu Station, AlaskaAfterM3.2229 km ESE of Attu Station, AlaskaAfterM3.4233 km ESE of Attu Station, AlaskaAfterM3.5234 km ESE of Attu Station, AlaskaAfterM3.4232 km ESE of Attu Station, AlaskaAfterM3.9233 km ESE of Attu Station, AlaskaAfterM3.9229 km ESE of Attu Station, AlaskaAfterM3.3237 km ESE of Attu Station, AlaskaAfterM3.2Rat Islands, Aleutian Islands, 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 30, 2026, 04:47 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.