Alaska earthquakes

M2.5 earthquake 248 km W of Adak, Alaska

A magnitude 2.5 earthquake struck 248 km W of Adak, Alaska on Tue, May 12, 2020, 7:27 AM GMT+12 (19:27 UTC), 179 km (111 mi) below the surface.

A larger quake followed: M4.3 211 km W 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: 2.5 (ml), micro
Local time: Tue, May 12, 2020, 7:27 AM GMT+12
UTC: 2020-05-11 19:27:06 UTC
Depth: 178.9 km (111.2 mi), intermediate-depth
Epicenter: 52.099° N, 179.769° E
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.

Location uncertainty: About 7.8 km horizontally, 8.2 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 151°
Stations used: 18

Nearby

Within 100 km, magnitude 1.5 and up: 72 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 72.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70009p0b (also filed as ak02062meuhk). Read Wed, Sep 30, 2026, 5:52 AM UTC.