4.2
Earthquake Details: 234 km ESE of Attu Station, Alaska
Sep 3, 2026, 17:40:07
A magnitude 4.2 earthquake occurred near 234 km ESE of Attu Station, Alaska on Sep 3, 2026 at 17:40:07. The seismic event was recorded at a depth of 28.4 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth28.4 km
Significance271
Latitude51.9180
Longitude176.2710
Event IDaka2026rlwsmt
Magnitude4.2
Updated:Sep 3, 2026, 19:00:31 UTC
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- Sep 3, 2026, 17:40:07
- UTC
- Sep 3, 2026, 17:40:07 UTC
28.4 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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 3, 2026, 19:00 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.