Alaska earthquakes

M1.8 earthquake 114 km WSW of Adak, Alaska

A magnitude 1.8 earthquake struck 114 km WSW of Adak, Alaska on Tue, Jul 17, 2018, 10:08 PM HADT (07:08 UTC), 27 km (17 mi) below the surface.

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

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The earthquake

Magnitude: 1.8 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Jul 17, 2018, 10:08 PM HADT
UTC: 2018-07-18 07:08:32 UTC
Depth: 26.6 km (16.5 mi), shallow
Epicenter: 51.546° N, 178.205° 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: 13

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 93 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0189585vrr (also filed as ak19967347). Read Thu, Oct 1, 2026, 11:30 PM UTC.