4.2
Earthquake details: 193 km SE of Akutan, Alaska
Oct 21, 2026, 10:45:59
- Depth
- 10 km
- Felt reports
- No data
Source: USGSUpdated: Nov 12, 2026, 12:24 PM UTC
A magnitude 4.2 earthquake occurred on Oct 21, 2026 at 10:45:59. Epicenter: 193 km SE of Akutan, Alaska. Reported depth: 10 km.
Status: Reviewed
Tsunami information
Loading data...
Time & depth
- Local time
- Oct 20, 2026, 23:45:59 GMT-11
- UTC
- Oct 21, 2026, 10:45:59 UTC
10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Loading map...
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSmb 4.2
us6000u3uv
- Depth:
- 10 km
- Status:
- Reviewed
- Time:
- Updated:
- Nov 12, 2026, 12:24 PM UTC
Technical Details
Depth10 km
Significance271
Latitude53.0808
Longitude-163.4558
Event IDus6000u3uv
Magnitude4.2
Updated:Nov 12, 2026, 12:24:56 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 12, 2026, 12:24 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).