M1.7 earthquake 123 km SSE of Sand Point, Alaska

A magnitude 1.7 earthquake struck 123 km SSE of Sand Point, Alaska on Tue, Sep 21, 2021, 9:03 PM AKDT (05:03 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M1.8 109 km SE of Sand Point, 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: 147 in the 60 days after this one and 52 in the 30 days before it.

The first 60 of 147.

From the USGS Earthquake Hazards Program and its partner networks, event ak021c6cetsd. Read Wed, Sep 23, 2026, 8:02 AM UTC.