Alaska earthquakes

M5.0 earthquake 97 km SE of False Pass, Alaska

A magnitude 5.0 earthquake struck 97 km SE of False Pass, Alaska on Mon, Dec 9, 2024, 8:34 AM AKST (17:34 UTC), 35 km (22 mi) below the surface.

King Cove 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: 5.0 (mww), moderate
Local time: Mon, Dec 9, 2024, 8:34 AM AKST
UTC: 2024-12-09 17:34:04 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 54.177° N, 162.448° W
Region: Alaska
Felt reports: 1
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: 2.9% of gravity
Peak ground velocity: 2.2 cm/s
Map: Automatic

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

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Aftershock forecast

The chance of at least one aftershock this large or larger, from the USGS operational aftershock forecast, issued Tue, Dec 9, 2025, 5:34 PM UTC. The USGS updates it as the sequence unfolds.

Within	M3+	M4+	M5+	M6+	M7+
1 day	Under 1%	Under 1%	Under 1%	Under 1%	Under 1%
1 week	Under 1%	Under 1%	Under 1%	Under 1%	Under 1%
1 month	3%	Under 1%	Under 1%	Under 1%	Under 1%
1 year	25%	3%	Under 1%	Under 1%	Under 1%

In the coming week the USGS expects about 0 aftershocks of magnitude 3 or more, and most likely between 0 and 0.

Fault motion and ground failure

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

Faulting: Reverse (thrust)
Moment magnitude: 5.0 Mww
Nodal plane 1: Strike 59°, dip 58°, rake 93°
Nodal plane 2: Strike 233°, dip 32°, rake 85°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 3.7 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 133°
Stations used: 146

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast99 kmS

Nearby

Within 100 km, magnitude 2.0 and up: 92 in the 60 days after this one and 58 in the 30 days before it.

After

The first 60 of 92.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000nxcu (also filed as ak024ft771ye). Read Wed, Sep 30, 2026, 6:06 PM UTC.