Alaska earthquakes

M4.4 earthquake 46 km W of Tyonek, Alaska

A magnitude 4.4 earthquake struck 46 km W of Tyonek, Alaska on Sat, May 7, 2022, 8:16 PM AKDT (04:16 UTC), 95 km (59 mi) below the surface.

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Map

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

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The earthquake

Magnitude: 4.4 (mb, body-wave), light
Magnitude from: Alaska Earthquake Center
Local time: Sat, May 7, 2022, 8:16 PM AKDT
UTC: 2022-05-08 04:16:02 UTC
Depth: 94.6 km (58.8 mi), intermediate-depth
Epicenter: 61.001° N, 151.979° W
Region: Alaska
Felt reports: 9
Strongest shaking: III, weak shaking
PAGER alert: Green
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
4.4	mb, body-wave	Alaska Earthquake Center	Preferred · Preliminary
4.4	mb, body-wave	USGS National Earthquake Information Center	Reviewed · ±0.126 · 19 stations
4.2	ML, local (Richter)	NOAA National Tsunami Warning Center	Reviewed · 31 stations

What happened

The USGS’s account of the effects of this earthquake.

This event was felt in South-Central Alaskan communities.

From the USGS event page for ak0225vr9lag. U.S. Geological Survey text and figures are in the public domain.

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: III, weak shaking
Peak ground acceleration: 0.4% of gravity
Peak ground velocity: -2.1 cm/s
Map: Automatic

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

Did you feel it?

9 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Estimated impact

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

Alert level: Green: little or no damage or loss of life expected

Deaths: estimated chance of each range
Range	Chance
Under 1	69%
1 to 10	29%
10 to 100	2%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

Economic losses: estimated chance of each range
Range, million USD	Chance
Under 1	65%
1 to 10	30%
10 to 100	4%
100 to 1,000	Under 1%
1,000 to 10,000	Under 1%
10,000 to 100,000	Under 1%
100,000 to 10,000,000	Under 1%

How well it is located

Reviewed by a seismologist.

Stations used: 235

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 104 in the 30 days before it.

After

The first 60 of 171.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0225vr9lag (also filed as us7000h7vr, at00rbjqio). Read Fri, Oct 2, 2026, 6:57 PM UTC.