M2.4 earthquake 143 km SE of Sand Point, Alaska

A magnitude 2.4 earthquake struck 143 km SE of Sand Point, Alaska on Thu, Aug 9, 2018, 10:58 PM AKDT (06:58 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M3.7 128 km SSE of Perryville, 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: 30 in the 60 days after this one and 17 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event aacse018a7983w7. Read Wed, Sep 30, 2026, 7:57 PM UTC.