4.2

Earthquake Details: 150 km SW of Adak, Alaska

Nov 1, 2026, 10:56:45

Depth
23.1 km
Felt reports
No data
Source: USGSUpdated: Nov 4, 2026, 04:34 AM UTC

A magnitude 4.2 earthquake occurred on Nov 1, 2026 at 10:56:45. Epicenter: 150 km SW of Adak, Alaska. Reported depth: 23.1 km.

Tsunami information

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Time & depth

Local time
Oct 31, 2026, 22:56:45 GMT-12
UTC
Nov 1, 2026, 10:56:45 UTC
23.1 km · Shallow-focus

Less than 70 km deep. Shaking is often stronger near the epicentre.

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Nearby earthquakes · 12
M2.6290 km W of Adak, AlaskaBeforeM3.4184 km S of Atka, AlaskaBeforeM4.5121 km SE of Atka, AlaskaBeforeM4.5111 km ESE of Atka, AlaskaBeforeM2.657 km SW of Adak, AlaskaBeforeM3.0256 km WSW of Adak, AlaskaBeforeM4.2147 km WSW of Adak, AlaskaBeforeM2.452 km SSW of Adak, AlaskaAfterM2.8133 km WSW of Adak, AlaskaAfterM2.3115 km W of Adak, AlaskaAfterM3.667 km SE of Adak, AlaskaAfterM4.230 km S of Adak, AlaskaAfter

Agency measurements

Agencies may use different observations and magnitude scales, and initial estimates can change.

  • USGSM 4.2

    aka2026vqiofs

    Depth:
    23.1 km
    Time:
    Updated:
    Nov 4, 2026, 04:34 AM UTC

Technical Details

Depth23.1 km
Significance271
Latitude51.1190
Longitude-178.4330
Event IDaka2026vqiofs
Magnitude4.2
Updated:Nov 4, 2026, 04:34:43 UTC

Regional Seismicity

View recent seismic activity near this event:

External Resources

YouTube · Earthquake LiveView on USGS Official Site

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 4, 2026, 04:34 UTC.

Data sources: