M1.7 earthquake 48 km ESE of Whittier, Alaska

A magnitude 1.7 earthquake struck 48 km ESE of Whittier, Alaska on Sat, Oct 21, 2017, 1:03 AM AKDT (09:03 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.3 53 km SW of Tatitlek, 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: 95 in the 60 days after this one and 37 in the 30 days before it.

The first 60 of 95.

From the USGS Earthquake Hazards Program and its partner networks, event ak017diddmxk (also filed as ak17091315). Read Sat, Oct 3, 2026, 4:56 PM UTC.