M1.6 earthquake 76 km NW of Karluk, Alaska

A magnitude 1.6 earthquake struck 76 km NW of Karluk, Alaska on Fri, Jul 30, 2021, 4:26 AM AKDT (12:26 UTC), 15 km (9 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M1.8 73 km ENE of Ugashik, Alaska. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

An automatic solution; a seismologist may revise it.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 89 in the 60 days after this one and 53 in the 30 days before it.

The first 60 of 89.

From the USGS Earthquake Hazards Program and its partner networks, event ak0219p5p0f1. Read Wed, Sep 23, 2026, 2:36 AM UTC.