Alaska earthquakes

M4.1 earthquake 117 km SSW of Sand Point, Alaska

A magnitude 4.1 earthquake struck 117 km SSW of Sand Point, Alaska on Sat, Nov 23, 2024, 8:39 AM AKST (17:39 UTC), 31 km (19 mi) below the surface.

A larger quake followed: M5.0 97 km SE of False Pass, Alaska. This one was a foreshock.

Sand Point 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: 4.1 (mwr), light
Local time: Sat, Nov 23, 2024, 8:39 AM AKST
UTC: 2024-11-23 17:39:53 UTC
Depth: 30.8 km (19.1 mi), shallow
Epicenter: 54.326° N, 161.007° W
Region: Alaska
Strongest shaking: I, not felt 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: I, not felt shaking
Peak ground acceleration: 0.0% 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.

Fault motion and ground failure

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

Faulting: Oblique reverse
Moment magnitude: 4.1 Mwr
Nodal plane 1: Strike 64°, dip 63°, rake 57°
Nodal plane 2: Strike 299°, dip 42°, rake 137°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 4.8 km horizontally, 5.1 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 135°
Stations used: 106

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast117 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 149 in the 60 days after this one and 86 in the 30 days before it.

After

The first 60 of 149.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000p7ae (also filed as ak024f2qmojm). Read Wed, Sep 30, 2026, 4:07 PM UTC.