3.7

Earthquake Details: 91 km SE of Atka, Alaska, United States

8/13/2026, 3:28:16 PM

A magnitude 3.7 earthquake occurred near 91 km SE of Atka, Alaska, United States on 8/13/2026 at 3:28:16 PM. The seismic event was recorded at a depth of 35.47 km. No tsunami warning was issued.

No Tsunami WarningStatus: reviewedType: earthquake

Technical Details

Depth35.47 km
Significance211
Latitude51.5849
Longitude-173.3013
Event IDus6000tkmd
Magnitude3.7
Updated:8/15/2026, 5:27:30 PM

External Resources

View on USGS Official Site

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Time & depth

Local time
8/13/2026, 3:28:16 PM
UTC
8/13/2026, 3:28:16 PM UTC
35.47 km · Shallow-focus

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

Nearby event sequence · 12
M2.951 km ESE of Atka, Alaska, United StatesBeforeM3.4215 km WSW of Adak, Alaska, United StatesBeforeM2.9184 km W of Adak, Alaska, United StatesBeforeM2.937 km SSW of Atka, Alaska, United StatesAfterM3.291 km E of Nikolski, Alaska, United StatesAfterM4.060 km SSW of Unalaska, Alaska, United StatesAfterM2.9170 km SW of Nikolski, Alaska, United StatesAfterM3.2200 km W of Adak, Alaska, United StatesAfterM3.1171 km SE of Nikolski, Alaska, United StatesAfterM2.988 km SSW of Nikolski, Alaska, United StatesAfterM3.1153 km S 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, 05:27 PM UTC. Data sources: USGS / EMSC / JMA / Geoscience Australia / GeoNet.