Alaska earthquakes

M4.6 earthquake 114 km WNW of Atka, Alaska

A magnitude 4.6 earthquake struck 114 km WNW of Atka, Alaska on Thu, Jun 13, 2024, 5:04 AM HADT (14:04 UTC), 235 km (146 mi) below the surface.

A larger quake followed: M5.0 66 km W of Atka, Alaska. This one was a foreshock.

Map

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

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The earthquake

Magnitude: 4.6 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Thu, Jun 13, 2024, 5:04 AM HADT
UTC: 2024-06-13 14:04:57 UTC
Depth: 235.3 km (146.2 mi), intermediate-depth
Epicenter: 52.750° N, 175.624° 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.	Scale	Computed by	Notes
4.6	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.032 · 295 stations
4.6	mb, body-wave	Alaska Earthquake Center	Preliminary

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: 0.1% of gravity
Peak ground velocity: 0.0 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.

Location uncertainty: About 8.5 km horizontally, 6.4 km in depth
Magnitude uncertainty: ±0.03
Depth from: From location
Station coverage gap: 72°
Stations used: 82

Nearby

Within 100 km, magnitude 1.6 and up: 48 in the 60 days after this one and 20 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 us7000ms55 (also filed as ak0247l41bc4). Read Thu, Oct 1, 2026, 12:24 PM UTC.