3.4
Earthquake Details: 184 km S of Atka, Alaska
Oct 31, 2026, 16:41:42
- Depth
- 20 km
- Felt reports
- No data
Source: USGSUpdated: Nov 2, 2026, 09:11 AM UTC
A magnitude 3.4 earthquake occurred on Oct 31, 2026 at 16:41:42. Epicenter: 184 km S of Atka, Alaska. Reported depth: 20 km.
Tsunami information
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Time & depth
- Local time
- Oct 31, 2026, 04:41:42 GMT-12
- UTC
- Oct 31, 2026, 16:41:42 UTC
20 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby earthquakes · 8
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 3.4
aka2026voybfy
- Depth:
- 20 km
- Time:
- Updated:
- Nov 2, 2026, 09:11 AM UTC
Technical Details
Depth20 km
Significance178
Latitude50.5500
Longitude-173.8570
Event IDaka2026voybfy
Magnitude3.4
Updated:Nov 2, 2026, 09:11:15 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 2, 2026, 09:11 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).