3.4
Earthquake Details: 100 km SSW of Nikolski, Alaska
Oct 31, 2026, 15:10:11
- Depth
- 10 km
- Felt reports
- No data
Source: USGSUpdated: Oct 31, 2026, 10:04 PM UTC
A magnitude 3.4 earthquake occurred on Oct 31, 2026 at 15:10:11. Epicenter: 100 km SSW of Nikolski, Alaska. Reported depth: 10 km.
Tsunami information
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Time & depth
- Local time
- Oct 31, 2026, 04:10:11 GMT-11
- UTC
- Oct 31, 2026, 15:10:11 UTC
10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby earthquakes · 9
M3.3100 km E of Akutan, AlaskaBeforeM5.0143 km S of False Pass, AlaskaBeforeM3.07 km W of Dutch Harbor, AlaskaBeforeM3.451 km SSW of Nikolski, AlaskaBeforeM2.880 km SSE of Akutan, AlaskaBeforeM3.4184 km S of Atka, 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
us7000tukr
- Depth:
- 10 km
- Time:
- Updated:
- Oct 31, 2026, 10:04 PM UTC
Technical Details
Depth10 km
Significance178
Latitude52.0862
Longitude-169.3343
Event IDus7000tukr
Magnitude3.4
Updated:Oct 31, 2026, 22:04:22 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: Oct 31, 2026, 22:04 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).