M1.5 earthquake 13 km ESE of Kobuk, Alaska

A magnitude 1.5 earthquake struck 13 km ESE of Kobuk, Alaska on Sat, Jul 31, 2021, 1:59 PM AKDT (21:59 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.4 54 km NNE of Kobuk, 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: 57 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 ak0219qysec4. Read Sat, Oct 3, 2026, 7:35 AM UTC.