3.3
Earthquake Details: 157 km SW of Nikolski, Alaska, United States
8/11/2026, 8:57:34 PM
A magnitude 3.3 earthquake occurred near 157 km SW of Nikolski, Alaska, United States on 8/11/2026 at 8:57:34 PM. The seismic event was recorded at a depth of 23.7 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Technical Details
Depth23.7 km
Significance168
Latitude51.9480
Longitude-170.5150
Event IDaka2026pvqutl
Magnitude3.3
Updated:8/11/2026, 10:36:33 PM
External Resources
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Time & depth
- Local time
- 8/11/2026, 8:57:34 PM
- UTC
- 8/11/2026, 8:57:34 PM UTC
23.7 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M3.791 km SE of Atka, Alaska, United StatesAfterM3.291 km E of Nikolski, Alaska, United StatesAfterM4.060 km SSW of Unalaska, Alaska, United StatesAfterM3.1171 km SE of Nikolski, Alaska, United StatesAfterM3.1153 km S of Atka, Alaska, United StatesAfterM3.0182 km E of Atka, Alaska, United StatesAfterM3.0163 km SW of Nikolski, Alaska, United StatesAfterM3.177 km W of Nikolski, Alaska, United StatesAfterM3.457 km SSE of Adak, Alaska, United StatesAfterM3.2100 km S of Atka, Alaska, United StatesAfterM3.487 km SSW of Unalaska, Alaska, United StatesAfterM3.491 km SSW of Unalaska, Alaska, United StatesAfter
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: Aug 11, 2026, 10:36 PM 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.