Alaska earthquakes

M2.7 earthquake 68 km ENE of Adak, Alaska

A magnitude 2.7 earthquake struck 68 km ENE of Adak, Alaska on Sat, Aug 12, 2023, 5:39 AM HADT (14:39 UTC), 216 km (134 mi) below the surface.

A larger quake followed: M5.0 44 km SSE of Adak, 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: 2.7 (ml), micro
Local time: Sat, Aug 12, 2023, 5:39 AM HADT
UTC: 2023-08-12 14:39:23 UTC
Depth: 216.3 km (134.4 mi), intermediate-depth
Epicenter: 52.038° N, 175.678° 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.

Location uncertainty: About 19.0 km horizontally, 1.1 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 173°
Stations used: 15

Nearby

Within 100 km, magnitude 1.5 and up: 180 in the 60 days after this one and 94 in the 30 days before it.

After

The first 60 of 180.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000kr3f (also filed as ak023aaoy7ve). Read Wed, Sep 30, 2026, 6:33 PM UTC.