Earthquake Details: 68 km ESE of Atka, Alaska, United States

8/9/2026, 3:36:17 AM

A magnitude 4.9 earthquake occurred near 68 km ESE of Atka, Alaska, United States on 8/9/2026 at 3:36:17 AM. The seismic event was recorded at a depth of 60.3 km. No tsunami warning was issued.

No Tsunami WarningStatus: reviewedType: earthquake

Technical Details

Depth60.3 km

Significance0

Latitude51.9870

Longitude-173.2610

Event IDus6000tjcn

Magnitude4.9

Updated:8/14/2026, 9:22:35 PM

External Resources

View on USGS Official Site

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Time & depth

Local time: 8/9/2026, 3:36:17 AM
UTC: 8/9/2026, 3:36:17 AM UTC

60.3 km · Shallow-focus

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

Nearby event sequence · 4

M2.692 km SE of Atka, Alaska, United StatesAfter8/15/2026, 4:07:43 AM M2.785 km SSW of Nikolski, Alaska, United StatesAfter8/15/2026, 4:26:28 AM M2.9243 km ESE of Atka, Alaska, United StatesAfter8/15/2026, 5:54:31 AM M2.9179 km ESE of Atka, Alaska, United StatesAfter8/15/2026, 5:54:35 AM

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: Aug 14, 2026, 09:22 PM UTC. Data sources: USGS / EMSC / JMA / Geoscience Australia / GeoNet.