3.1
Earthquake Details: 223 km SSE of Atka, Alaska
Sep 12, 2026, 04:47:18
A magnitude 3.1 earthquake occurred near 223 km SSE of Atka, Alaska on Sep 12, 2026 at 04:47:18. The seismic event was recorded at a depth of 20 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth20 km
Significance148
Latitude50.3080
Longitude-173.1150
Event IDaka2026sbndnt
Magnitude3.1
Updated:Sep 12, 2026, 16:02:26 UTC
External Resources
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Time & depth
- Local time
- Sep 12, 2026, 04:47:18
- UTC
- Sep 12, 2026, 04:47:18 UTC
20 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M2.6250 km SW of Adak, AlaskaBeforeM3.2155 km SW of Adak, AlaskaBeforeM5.7152 km SW of Adak, AlaskaBeforeM5.2152 km WSW of Adak, AlaskaBeforeM5.3151 km WSW of Adak, AlaskaBeforeM3.1152 km SW of Adak, AlaskaBeforeM4.3151 km SW of Adak, AlaskaBeforeM2.6174 km W of Adak, AlaskaBeforeM3.5151 km SW of Adak, AlaskaBeforeM2.9187 km SSW of Nikolski, AlaskaAfterM3.1118 km ESE of Atka, AlaskaAfterM2.7114 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: Sep 12, 2026, 16:02 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.