3.4
Earthquake Details: 263 km SSE of Attu Station, Alaska
Sep 5, 2026, 22:37:26
A magnitude 3.4 earthquake occurred near 263 km SSE of Attu Station, Alaska on Sep 5, 2026 at 22:37:26. 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
Significance178
Latitude50.8750
Longitude175.3140
Event IDaka2026rpyrso
Magnitude3.4
Updated:Sep 9, 2026, 21:35:49 UTC
External Resources
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Time & depth
- Local time
- Sep 5, 2026, 22:37:26
- UTC
- Sep 5, 2026, 22:37:26 UTC
20 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 10
M3.9260 km ESE of Attu Station, AlaskaAfterM3.7262 km ESE of Attu Station, AlaskaAfterM2.5Rat Islands, Aleutian Islands, AlaskaAfterM3.0Rat Islands, Aleutian Islands, AlaskaAfterM3.6114 km SSE of Attu Station, AlaskaAfterM3.3Rat Islands, Aleutian Islands, AlaskaAfterM2.8236 km W of Adak, AlaskaAfterM2.6235 km W of Adak, AlaskaAfterM4.0Rat Islands, Aleutian Islands, AlaskaAfterM3.9Rat Islands, Aleutian Islands, 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 9, 2026, 21:35 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.