M2.3 earthquake 63 km WNW of Ninilchik, Alaska

A magnitude 2.3 earthquake struck 63 km WNW of Ninilchik, Alaska on Fri, Jan 31, 2020, 10:15 PM AKST (07:15 UTC), 105 km (65 mi) below the surface.

A larger quake followed: M4.3 57 km W of Salamatof, 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
2.3	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.6	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.038 · 93 stations

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: at least 200 in the 60 days after this one and 198 in the 30 days before it.

The first 60 of at least 200.

From the USGS Earthquake Hazards Program and its partner networks, event ak0201h1gd2v (also filed as us60007m0r). Read Fri, Oct 2, 2026, 2:37 AM UTC.