Alaska earthquakes

M2.4 earthquake 19 km SSW of Atka, Alaska

A magnitude 2.4 earthquake struck 19 km SSW of Atka, Alaska on Mon, Jul 16, 2018, 1:11 PM HADT (22:11 UTC), 103 km (64 mi) below the surface.

A larger quake followed: M4.6 85 km SE of Atka, Alaska. This one was a foreshock.

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
2.4 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-07-16 22:11:56 UTC
Depth
103.4 km (64.2 mi), intermediate-depth
Epicenter
52.045° N, 174.337° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

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
14

Nearby

Within 100 km, magnitude 1.5 and up: 71 in the 60 days after this one and 41 in the 30 days before it.

After

The first 60 of 71.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0189261dte (also filed as ak19908810). Read Thu, Oct 1, 2026, 10:03 PM UTC.