M2.3 earthquake 131 km S of McCarthy, Alaska

A magnitude 2.3 earthquake struck 131 km S of McCarthy, Alaska on Thu, Aug 22, 2024, 9:33 AM AKDT (17:33 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.7 129 km SSE of McCarthy, 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
2.4	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.043 · 72 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: 21 in the 60 days after this one and 8 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak024asxm1ma (also filed as us7000n8tj). Read Thu, Oct 1, 2026, 2:37 AM UTC.