M1.9 earthquake 88 km N of Karluk, Alaska

A magnitude 1.9 earthquake struck 88 km N of Karluk, Alaska on Fri, Aug 14, 2020, 2:18 PM AKDT (22:18 UTC), 0 km (0 mi) below the surface.

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

A larger quake followed: M4.1 36 km NE of Larsen Bay, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
1.9	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
1.58	ML, local (Richter)	AV	Final · ±0.117413364880429 · 5 stations

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: 83 in the 60 days after this one and 30 in the 30 days before it.

The first 60 of 83.

From the USGS Earthquake Hazards Program and its partner networks, event ak020afs77he (also filed as av91112156). Read Thu, Oct 1, 2026, 4:31 AM UTC.