Alaska earthquakes

M4.9 earthquake 275 km SE of Chiniak, Alaska

A magnitude 4.9 earthquake struck 275 km SE of Chiniak, Alaska on Wed, Feb 2, 2022, 9:24 PM AKST (06:24 UTC), 10 km (6 mi) below the surface.

Kodiak 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: 4.9 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Wed, Feb 2, 2022, 9:24 PM AKST
UTC: 2022-02-03 06:24:56 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 55.815° N, 149.196° W
Region: Alaska
Strongest shaking: I, not felt shaking
Tsunami flag: Yes: a large quake in an oceanic region
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.	Scale	Computed by	Notes
4.9	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.027 · 420 stations
4.9	ML, local (Richter)	Alaska Earthquake Center	Preliminary
4.8	ML, local (Richter)	NOAA National Tsunami Warning Center	Reviewed · 26 stations

Tsunami

The USGS flags a quake this large in an oceanic region. The flag does not mean a tsunami happened; the tsunami warning centers decide that, and their messages are below when they issued any.

Current tsunami warnings: tsunami.gov. Warnings in force in the US also appear on our alerts pages.

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: -3.4 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.

Location uncertainty: About 6.6 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.03
Depth from: Operator assigned
Station coverage gap: 85°
Stations used: 265

Nearest places

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

Kodiak, AlaskaPopulation 6,253. Forecast294 kmSE

Nearby

Within 100 km, magnitude 1.9 and up: 42 in the 60 days after this one and 8 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000ghjy (also filed as at00r6pttm, ak0221kbznyn). Read Fri, Oct 2, 2026, 3:27 AM UTC.