M1.8 Depth: 12.5 km

M1.8 Earthquake near 36 km SW of Chiniak, Alaska (United States)

UTC time: 2025-08-12 17:18:05 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 36 km SW of Chiniak, Alaska (United States) on August 12, 2025 at 17:18 UTC. With a focal depth of about 13 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 202 earthquakes, the strongest at M4.1.

Details

Magnitude

M1.8

Depth

12.5 km

UTC time

2025-08-12 17:18:05 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

57.33530, -152.62680

Temperature

9.9°C

Map

Depth profile

Shallow

12.5 km

12.5 km — close to the regional average (15.4 km)

Regional average: 15.4 km

Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

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Historic earthquake map · United States

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Country statistics · United States

Country overview

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Stats (last 24h)

Global (24h)

633

Country (24h)