4.0
Earthquake Details: 203 km SE of Unalaska, Alaska
Nov 7, 2026, 19:45:08
- Depth
- 27.9 km
- Felt reports
- No data
Source: USGSUpdated: Nov 8, 2026, 06:03 AM UTC
A magnitude 4.0 earthquake occurred on Nov 7, 2026 at 19:45:08. Epicenter: 203 km SE of Unalaska, Alaska. Reported depth: 27.9 km.
Tsunami information
Loading data...
Time & depth
- Local time
- Nov 7, 2026, 08:45:08 GMT-11
- UTC
- Nov 7, 2026, 19:45:08 UTC
27.9 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Loading map...
Nearby earthquakes · 12
M3.968 km S of Unalaska, AlaskaBeforeM3.6115 km SW of Nikolski, AlaskaBeforeM3.8115 km SW of Nikolski, AlaskaBeforeM3.2120 km SW of Nikolski, AlaskaBeforeM3.2120 km SW of Nikolski, AlaskaBeforeM3.5117 km SW of Nikolski, AlaskaBeforeM3.4120 km SW of Nikolski, AlaskaBeforeM4.6147 km SSE of False Pass, AlaskaBeforeM3.6138 km SSE of False Pass, AlaskaBeforeM4.7139 km SSE of False Pass, AlaskaBeforeM2.6103 km S of False Pass, AlaskaBeforeM2.691 km SSW of Nikolski, AlaskaAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 4
aka2026wcchuf
- Depth:
- 27.9 km
- Time:
- Updated:
- Nov 8, 2026, 06:03 AM UTC
Technical Details
Depth27.9 km
Significance246
Latitude52.3770
Longitude-164.7820
Event IDaka2026wcchuf
Magnitude4.0
Updated:Nov 8, 2026, 06:03:10 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 8, 2026, 06:03 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).