3.3
Earthquake Details: 172 km SW of Nikolski, Alaska
Sep 20, 2026, 19:15:55
A magnitude 3.3 earthquake occurred near 172 km SW of Nikolski, Alaska on Sep 20, 2026 at 19:15:55. The seismic event was recorded at a depth of 105.52 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth105.52 km
Significance168
Latitude52.0702
Longitude-170.9708
Event IDus7000titf
Magnitude3.3
Updated:Sep 25, 2026, 15:05:08 UTC
External Resources
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Time & depth
- Local time
- Sep 20, 2026, 19:15:55
- UTC
- Sep 20, 2026, 19:15:55 UTC
105.52 km · Intermediate-focus
Between 70 and 300 km deep.
Nearby event sequence · 12
M4.0166 km SW of Nikolski, AlaskaBeforeM4.086 km SSW of Nikolski, AlaskaBeforeM4.085 km SSW of Nikolski, AlaskaBeforeM3.7159 km WSW of Nikolski, AlaskaBeforeM4.6102 km WSW of Nikolski, AlaskaBeforeM3.5168 km SW of Nikolski, AlaskaAfterM3.6142 km SW of Nikolski, AlaskaAfterM3.6167 km WSW of Nikolski, AlaskaAfterM3.9166 km WSW of Nikolski, AlaskaAfterM3.9167 km WSW of Nikolski, AlaskaAfterM3.7155 km SW of Nikolski, AlaskaAfterM3.8136 km SW 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 25, 2026, 15:05 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.