Alaska earthquakes

M1.7 earthquake 124 km WSW of Adak, Alaska

A magnitude 1.7 earthquake struck 124 km WSW of Adak, Alaska on Mon, Jul 23, 2018, 8:47 AM HADT (17:47 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M6.5 108 km WSW of Adak, Alaska. This one was a foreshock.

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 1.7 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Mon, Jul 23, 2018, 8:47 AM HADT
UTC: 2018-07-23 17:47:02 UTC
Depth: 15.7 km (9.8 mi), shallow
Epicenter: 51.657° N, 178.403° 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: 25

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 83 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0189do18wi (also filed as ak19965264). Read Fri, Oct 2, 2026, 10:33 PM UTC.