Alaska earthquakes

M4.5 earthquake 4 km NNW of Point MacKenzie, Alaska

A magnitude 4.5 earthquake struck 4 km NNW of Point MacKenzie, Alaska on Fri, Nov 30, 2018, 8:32 AM AKST (17:32 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M5.8 7 km NNW of Anchorage, Alaska. This one was a foreshock.

Point MacKenzie 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: 4.5 (ml), light
Local time: Fri, Nov 30, 2018, 8:32 AM AKST
UTC: 2018-11-30 17:32:27 UTC
Depth: 47.0 km (29.2 mi), shallow
Epicenter: 61.398° N, 149.998° W
Region: Alaska
Strongest shaking: IV, light 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: IV, light shaking
Peak ground acceleration: 443.0% of gravity
Peak ground velocity: 0.7 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: 31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 132 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018fcnt79k (also filed as ak20463262). Read Tue, Sep 29, 2026, 12:13 PM UTC.