3.5
Earthquake Details: 78 km SSW of Atka, Alaska
Sep 27, 2026, 22:09:01
A magnitude 3.5 earthquake occurred near 78 km SSW of Atka, Alaska on Sep 27, 2026 at 22:09:01. The seismic event was recorded at a depth of 0.4 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth0.4 km
Significance188
Latitude51.5240
Longitude-174.5510
Event IDaka2026teoffn
Magnitude3.5
Updated:Sep 28, 2026, 04:18:53 UTC
External Resources
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Time & depth
- Local time
- Sep 27, 2026, 22:09:01
- UTC
- Sep 27, 2026, 22:09:01 UTC
0.4 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 8
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 28, 2026, 04:18 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.