Alaska earthquakes

M4.8 earthquake 224 km SE of Chiniak, Alaska

A magnitude 4.8 earthquake struck 224 km SE of Chiniak, Alaska on Sat, Jun 16, 2018, 8:32 PM AKDT (04:32 UTC), 10 km (6 mi) below the surface.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 4.8 (mb), light
Local time: Sat, Jun 16, 2018, 8:32 PM AKDT
UTC: 2018-06-17 04:32:17 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.280° N, 149.512° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 5.6 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.03
Depth from: Operator assigned
Station coverage gap: 139°
Stations used: 232

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.8 and up: at least 199 in the 60 days after this one and at least 199 in the 30 days before it.

After

The first 60 of at least 199.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000etl9 (also filed as ak19773755, ak0187pwuxv3, aacse0187pwuxv3). Read Wed, Sep 30, 2026, 7:36 AM UTC.