Alaska earthquakes

M4.3 earthquake 62 km SE of King Salmon, Alaska

A magnitude 4.3 earthquake struck 62 km SE of King Salmon, Alaska on Mon, Nov 22, 2021, 2:27 AM AKST (11:27 UTC), 144 km (90 mi) below the surface.

Naknek forecast More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 4.3 (ml), light
Local time: Mon, Nov 22, 2021, 2:27 AM AKST
UTC: 2021-11-22 11:27:09 UTC
Depth: 144.3 km (89.7 mi), intermediate-depth
Epicenter: 58.260° N, 155.964° W
Region: Alaska
Strongest shaking: III, weak 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: III, weak shaking
Peak ground acceleration: 0.2% of gravity
Peak ground velocity: -3.0 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.

How well it is located

Reviewed by a seismologist.

Stations used: 301

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 77 in the 60 days after this one and 26 in the 30 days before it.

After

The first 60 of 77.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ezbwpne (also filed as us7000fw6d). Read Wed, Sep 23, 2026, 5:06 AM UTC.