Alaska earthquakes

M3.4 earthquake 72 km ENE of Chase, Alaska

A magnitude 3.4 earthquake struck 72 km ENE of Chase, Alaska on Mon, Oct 28, 2019, 7:43 AM AKDT (15:43 UTC), 56 km (35 mi) below the surface.

A larger quake followed: M4.0 49 km NNE of Petersville, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude: 3.4 (ml), minor
Local time: Mon, Oct 28, 2019, 7:43 AM AKDT
UTC: 2019-10-28 15:43:54 UTC
Depth: 55.6 km (34.5 mi), shallow
Epicenter: 62.654° N, 148.774° W
Region: Alaska
Strongest shaking: II, weak shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: II, weak shaking
Peak ground acceleration: 285.0% of gravity
Peak ground velocity: 0.0 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 178

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 154 in the 60 days after this one and 84 in the 30 days before it.

After

The first 60 of 154.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak019du1yasa (also filed as us600063yr). Read Thu, Oct 1, 2026, 12:05 AM UTC.