3.4
Earthquake Details: 74 km SE of Atka, Alaska
Sep 12, 2026, 15:21:18
A magnitude 3.4 earthquake occurred near 74 km SE of Atka, Alaska on Sep 12, 2026 at 15:21:18. The seismic event was recorded at a depth of 13.3 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth13.3 km
Significance178
Latitude51.7890
Longitude-173.3460
Event IDaka2026scihfk
Magnitude3.4
Updated:Sep 15, 2026, 22:30:24 UTC
External Resources
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Time & depth
- Local time
- Sep 12, 2026, 15:21:18
- UTC
- Sep 12, 2026, 15:21:18 UTC
13.3 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M5.7152 km SW of Adak, AlaskaBeforeM5.2152 km WSW of Adak, AlaskaBeforeM5.3151 km WSW of Adak, AlaskaBeforeM4.3151 km SW of Adak, AlaskaBeforeM3.5151 km SW of Adak, AlaskaBeforeM3.690 km SSW of Unalaska, AlaskaBeforeM3.686 km SSW of Unalaska, AlaskaBeforeM3.494 km SSW of Nikolski, AlaskaAfterM4.2157 km WSW of Adak, AlaskaAfterM3.9150 km WSW of Adak, AlaskaAfterM3.5134 km SW of Adak, AlaskaAfterM4.092 km SSW of Unalaska, 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 15, 2026, 22:30 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.