Alaska earthquakes

M4.0 earthquake 64 km SE of King Cove, Alaska

A magnitude 4.0 earthquake struck 64 km SE of King Cove, Alaska on Tue, Sep 29, 2026, 2:24 AM AKDT (10:24 UTC), 50 km (31 mi) below the surface.

King Cove forecastMore in Alaska

Map

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

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The earthquake

Magnitude
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-09-29 10:24:37 UTC
Depth
49.9 km (31.0 mi), shallow
Epicenter
54.660° N, 161.590° W
Region
Alaska
Strongest shaking
II, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
4.0mb, body-waveUSGS National Earthquake Information CenterPreferred · Preliminary · ±0.163 · 10 stations
3.9ML, local (Richter)Alaska Earthquake CenterPreliminary · ±0.1 · 90 stations

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
0.2% 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?

No one has reported feeling this quake to the USGS. If you felt it, tell the USGS: every report sharpens the shaking map.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.3 km horizontally, 16.0 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
179°
Stations used
37

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 0 since this one and 47 in the 30 days before it.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tybl (also filed as aka2026thitnz). Read Thu, Oct 1, 2026, 12:37 PM UTC.