M3.0 earthquake 31 km NNE of Cold Bay, Alaska

A magnitude 3.0 earthquake struck 31 km NNE of Cold Bay, Alaska on Mon, Sep 16, 2024, 8:20 AM AKDT (16:20 UTC), 162 km (101 mi) below the surface.

A larger quake followed: M4.3 15 km WNW 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
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.081 · 20 stations
2.7	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: 47 in the 60 days after this one and 17 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event us7000nmly (also filed as ak024by9dl06). Read Thu, Oct 1, 2026, 3:19 AM UTC.