3.1
Earthquake Details: 162 km WSW of Adak, Alaska
Aug 28, 2026, 18:59:09
A magnitude 3.1 earthquake occurred near 162 km WSW of Adak, Alaska on Aug 28, 2026 at 18:59:09. The seismic event was recorded at a depth of 32.94 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Technical Details
Depth32.94 km
Significance148
Latitude51.4225
Longitude-178.8643
Event IDus7000tcqa
Magnitude3.1
Updated:Aug 29, 2026, 12:41:24 UTC
External Resources
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Time & depth
- Local time
- Aug 28, 2026, 18:59:09
- UTC
- Aug 28, 2026, 18:59:09 UTC
32.94 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M2.8154 km SSE of Atka, AlaskaBeforeM3.9134 km E of Atka, AlaskaBeforeM2.992 km SE of Atka, AlaskaBeforeM2.8173 km WSW of Adak, AlaskaBeforeM3.5135 km SW of Adak, AlaskaBeforeM3.5134 km SW of Adak, AlaskaBeforeM2.940 km NE of Atka, AlaskaBeforeM2.839 km NE of Atka, AlaskaBeforeM3.2166 km WSW of Adak, AlaskaBeforeM2.8180 km WSW of Adak, AlaskaAfterM3.7100 km SE of Atka, AlaskaAfterM3.792 km SE 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 29, 2026, 12:41 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.