M1.5 earthquake 12 km ESE of Healy, Alaska

A magnitude 1.5 earthquake struck 12 km ESE of Healy, Alaska on Sat, Dec 18, 2021, 11:23 PM AKST (08:23 UTC), 81 km (51 mi) below the surface.

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

A larger quake followed: M2.8 71 km SSW of Harding-Birch Lakes, 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: 72 in the 60 days after this one and 31 in the 30 days before it.

The first 60 of 72.

From the USGS Earthquake Hazards Program and its partner networks, event ak021g7xm0m1. Read Wed, Sep 30, 2026, 5:06 AM UTC.