3.9
Earthquake Details: 209 km SSE of Atka, Alaska
Oct 6, 2026, 14:22:26
A magnitude 3.9 earthquake occurred near 209 km SSE of Atka, Alaska on Oct 6, 2026 at 14:22:26. The seismic event was recorded at a depth of 10 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth10 km
Significance234
Latitude50.5237
Longitude-172.8330
Event IDus6000u0jh
Magnitude3.9
Updated:Oct 6, 2026, 18:44:44 UTC
External Resources
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Time & depth
- Local time
- Oct 6, 2026, 14:22:26
- UTC
- Oct 6, 2026, 14:22:26 UTC
10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 11
M4.193 km SW of Atka, AlaskaBeforeM3.682 km SE of Atka, AlaskaBeforeM3.566 km SE of Atka, AlaskaBeforeM2.688 km SSE of Adak, AlaskaBeforeM3.2178 km SW of Nikolski, AlaskaBeforeM2.8203 km WSW of Adak, AlaskaBeforeM3.8178 km SSE of Atka, AlaskaAfterM2.5128 km SW of Adak, AlaskaAfterM2.540 km E of Nikolski, AlaskaAfterM3.4160 km SW of Nikolski, AlaskaAfterM3.5south of Aleutian IslandsAfter
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: Oct 6, 2026, 18:44 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.