M1.9 earthquake 74 km SSE of Chignik, Alaska

A magnitude 1.9 earthquake struck 74 km SSE of Chignik, Alaska on Thu, Aug 5, 2021, 6:45 PM AKDT (02:45 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M2.4 72 km SSE of Chignik, 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.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event ak021a0km7d9. Read Wed, Sep 23, 2026, 5:17 AM UTC.