Alaska earthquakes

M3.5 earthquake 284 km SE of Chiniak, Alaska

A magnitude 3.5 earthquake struck 284 km SE of Chiniak, Alaska on Fri, Sep 13, 2019, 1:20 PM AKDT (21:20 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 273 km SE of Chiniak, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 3.5 (ml), minor
Local time: Fri, Sep 13, 2019, 1:20 PM AKDT
UTC: 2019-09-13 21:20:43 UTC
Depth: 9.6 km (5.9 mi), shallow
Epicenter: 55.683° N, 149.248° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 9.1 km horizontally, 8.1 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 214°, poorly surrounded by stations
Stations used: 116

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 49 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005t8u (also filed as ak019brq7btf). Read Wed, Sep 30, 2026, 3:45 PM UTC.