M2.7 earthquake 31 km SSW of False Pass, Alaska

A magnitude 2.7 earthquake struck 31 km SSW of False Pass, Alaska on Wed, Aug 9, 2023, 2:14 AM AKDT (10:14 UTC), 119 km (74 mi) below the surface.

A larger quake followed: M4.9 108 km SSW of False Pass, 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
2.7	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.115 · 10 stations
2.5	ML, local (Richter)	Alaska Earthquake Center	Preliminary

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: 111 in the 60 days after this one and 69 in the 30 days before it.

The first 60 of 111.

From the USGS Earthquake Hazards Program and its partner networks, event us7000kqi9 (also filed as ak023a5nsx9b). Read Sat, Oct 3, 2026, 5:04 AM UTC.