Alaska earthquakes

M3.8 earthquake 41 km N of Glacier View, Alaska

A magnitude 3.8 earthquake struck 41 km N of Glacier View, Alaska on Sun, Sep 29, 2019, 5:20 PM AKDT (01:20 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M4.5 65 km SSE of Cantwell, Alaska. This one was a foreshock.

Sutton-Alpine forecast More in Alaska

Map

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

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The earthquake

Magnitude: 3.8 (ml), minor
Local time: Sun, Sep 29, 2019, 5:20 PM AKDT
UTC: 2019-09-30 01:20:26 UTC
Depth: 34.2 km (21.3 mi), shallow
Epicenter: 62.174° N, 147.795° W
Region: Alaska
Felt reports: 4
Strongest shaking: III, weak shaking
PAGER alert: Green
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: III, weak shaking
Peak ground acceleration: 360.0% of gravity
Peak ground velocity: 0.1 cm/s
Map: Automatic

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

Did you feel it?

4 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Estimated impact

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

Alert level: Green: little or no damage or loss of life expected

Deaths: estimated chance of each range
Range	Chance
Under 1	69%
1 to 10	29%
10 to 100	2%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

Economic losses: estimated chance of each range
Range, million USD	Chance
Under 1	65%
1 to 10	30%
10 to 100	4%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Oblique normal
Moment magnitude: 3.9 Mwr
Nodal plane 1: Strike 66°, dip 34°, rake -44°
Nodal plane 2: Strike 195°, dip 67°, rake -116°

How well it is located

Reviewed by a seismologist.

Stations used: 222

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 125 in the 60 days after this one and 47 in the 30 days before it.

After

The first 60 of 125.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak019cjifiox (also filed as us70005npq). Read Tue, Sep 29, 2026, 1:30 PM UTC.