3.7
Earthquake Details: 40 km SSE of Nikolski, Alaska
Oct 23, 2026, 09:18:31
- Depth
- 131.1 km
- Felt reports
- No data
Source: USGSUpdated: Oct 23, 2026, 05:45 PM UTC
A magnitude 3.7 earthquake occurred on Oct 23, 2026 at 09:18:31. Epicenter: 40 km SSE of Nikolski, Alaska. Reported depth: 131.1 km.
Tsunami information
Loading data...
Time & depth
- Local time
- Oct 22, 2026, 22:18:31 GMT-11
- UTC
- Oct 23, 2026, 09:18:31 UTC
131.1 km · Intermediate-focus
Between 70 and 300 km deep.
Loading map...
Nearby earthquakes · 10
M2.9186 km S of Atka, AlaskaBeforeM3.1177 km W of Nikolski, AlaskaBeforeM4.0195 km SE of Akutan, AlaskaBeforeM4.5158 km S of False Pass, AlaskaBeforeM3.2159 km S of False Pass, AlaskaBeforeM3.3151 km S of False Pass, AlaskaBeforeM2.359 km SE of Atka, AlaskaBeforeM2.342 km SSW of Nikolski, AlaskaBeforeM3.9203 km SSE of King Cove, AlaskaBeforeM4.0169 km S of False Pass, AlaskaBefore
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 3.7
aka2026uzpcaa
- Depth:
- 131.1 km
- Time:
- Updated:
- Oct 23, 2026, 05:45 PM UTC
Technical Details
Depth131.1 km
Significance211
Latitude52.5970
Longitude-168.6550
Event IDaka2026uzpcaa
Magnitude3.7
Updated:Oct 23, 2026, 17:45:37 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 23, 2026, 17:45 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).