4.0

Earthquake Details: 60 km SSW of Unalaska, Alaska, United States

8/14/2026, 3:10:52 AM

A magnitude 4.0 earthquake occurred near 60 km SSW of Unalaska, Alaska, United States on 8/14/2026 at 3:10:52 AM. The seismic event was recorded at a depth of 10 km. No tsunami warning was issued.

No Tsunami WarningStatus: reviewedType: earthquake

Technical Details

Depth10 km
Significance248
Latitude53.4180
Longitude-167.0180
Event IDaka2026pzvhjk
Magnitude4.0
Updated:8/15/2026, 7:37:39 AM

External Resources

View on USGS Official Site

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Time & depth

Local time
8/14/2026, 3:10:52 AM
UTC
8/14/2026, 3:10:52 AM UTC
10 km · Shallow-focus

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

Nearby event sequence · 12
M3.1118 km S of Sand Point, Alaska, United StatesBeforeM3.791 km SE of Atka, Alaska, United StatesBeforeM3.291 km E of Nikolski, Alaska, United StatesBeforeM2.9170 km SW of Nikolski, Alaska, United StatesAfterM2.991 km ESE of Akutan, Alaska, United StatesAfterM2.987 km SSE of Sand Point, Alaska, United StatesAfterM3.1171 km SE of Nikolski, Alaska, United StatesAfterM2.988 km SSW of Nikolski, Alaska, United StatesAfterM3.469 km SSE of King Cove, Alaska, United StatesAfterM2.9243 km ESE of Atka, Alaska, United StatesAfterM2.9179 km ESE of Atka, Alaska, United StatesAfterM3.0182 km E of Atka, Alaska, United StatesAfter

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 15, 2026, 07:37 AM UTC. Data sources: USGS / EMSC / JMA / Geoscience Australia / GeoNet.