3.1
Earthquake Details: 113 km SW of Adak, Alaska
Sep 15, 2026, 11:50:25
A magnitude 3.1 earthquake occurred near 113 km SW of Adak, Alaska on Sep 15, 2026 at 11:50:25. The seismic event was recorded at a depth of 35 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth35 km
Significance148
Latitude51.2472
Longitude-177.9209
Event IDus7000thqb
Magnitude3.1
Updated:Sep 16, 2026, 07:08:08 UTC
External Resources
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Time & depth
- Local time
- Sep 15, 2026, 11:50:25
- UTC
- Sep 15, 2026, 11:50:25 UTC
35 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M3.474 km SE of Atka, AlaskaBeforeM2.9south of Aleutian IslandsBeforeM4.2157 km WSW of Adak, AlaskaBeforeM3.9150 km WSW of Adak, AlaskaBeforeM3.5134 km SW of Adak, AlaskaBeforeM2.9210 km S of Atka, AlaskaBeforeM3.1257 km SSW of Adak, AlaskaBeforeM3.0134 km SW of Adak, AlaskaBeforeM3.2118 km SW of Adak, AlaskaBeforeM3.6163 km WSW of Adak, AlaskaAfterM3.4160 km WSW of Adak, AlaskaAfterM3.9167 km WSW of Nikolski, 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 16, 2026, 07:08 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.