4.2
Earthquake Details: 92 km WNW of False Pass, Alaska
Aug 31, 2026, 23:16:53
A magnitude 4.2 earthquake occurred near 92 km WNW of False Pass, Alaska on Aug 31, 2026 at 23:16:53. The seismic event was recorded at a depth of 174.4 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth174.4 km
Significance271
Latitude55.0626
Longitude-164.8095
Event IDus7000td88
Magnitude4.2
Updated:Sep 1, 2026, 06:28:57 UTC
External Resources
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Time & depth
- Local time
- Aug 31, 2026, 15:16:53 AKDT
- UTC
- Aug 31, 2026, 23:16:53 UTC
174.4 km · Intermediate-focus
Between 70 and 300 km deep.
Nearby major cities
Nearby event sequence · 12
M3.5212 km SSE of False Pass, AlaskaBeforeM3.481 km SSE of Sand Point, AlaskaBeforeM3.791 km SE of Akutan, AlaskaBeforeM5.177 km SSW of Nikolski, AlaskaAfterM5.389 km SSW of Nikolski, AlaskaAfterM5.293 km SSW of Nikolski, AlaskaAfterM3.894 km SSW of Nikolski, AlaskaAfterM3.785 km SSW of Nikolski, AlaskaAfterM4.5105 km SSW of Nikolski, AlaskaAfterM4.6Fox Islands, Aleutian IslandsAfterM4.590 km SSW of Nikolski, AlaskaAfterM4.6Fox Islands, Aleutian IslandsAfter
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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: Sep 1, 2026, 06:28 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.