3.4
Earthquake Details: 51 km SSW of Nikolski, Alaska
Oct 31, 2026, 05:12:44
- Depth
- 35 km
- Felt reports
- No data
Source: USGSUpdated: Nov 1, 2026, 09:31 AM UTC
A magnitude 3.4 earthquake occurred on Oct 31, 2026 at 05:12:44. Epicenter: 51 km SSW of Nikolski, Alaska. Reported depth: 35 km.
Tsunami information
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Time & depth
- Local time
- Oct 30, 2026, 18:12:44 GMT-11
- UTC
- Oct 31, 2026, 05:12:44 UTC
35 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby earthquakes · 9
M2.9157 km S of Unalaska, AlaskaBeforeM3.3100 km E of Akutan, AlaskaBeforeM5.0143 km S of False Pass, AlaskaBeforeM3.07 km W of Dutch Harbor, AlaskaBeforeM2.880 km SSE of Akutan, AlaskaAfterM3.4100 km SSW of Nikolski, AlaskaAfterM4.5121 km SE of Atka, AlaskaAfterM4.5111 km ESE of Atka, AlaskaAfterM3.7183 km SW of Nikolski, AlaskaAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 3.4
us7000tuhr
- Depth:
- 35 km
- Time:
- Updated:
- Nov 1, 2026, 09:31 AM UTC
Technical Details
Depth35 km
Significance178
Latitude52.5036
Longitude-169.1017
Event IDus7000tuhr
Magnitude3.4
Updated:Nov 1, 2026, 09:31:13 UTC
Regional Seismicity
View recent seismic activity near this event:
External Resources
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: Nov 1, 2026, 09:31 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under 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.
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.
- CENC / Wolfx — CENC earthquake parameters via Wolfx, an independent unofficial relay.
- GFZ / GEOFON — Locations, depths and magnitudes: GFZ/GEOFON using GEVN network data (CC BY 4.0).