M4.5 earthquake 119 km WSW of Adak, Alaska

A magnitude 4.5 earthquake struck 119 km WSW of Adak, Alaska on Wed, Jan 30, 2019, 2:22 PM HAST (00:22 UTC), 51 km (31 mi) below the surface.

A larger quake followed: M5.2 122 km WSW of Adak, 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
4.5	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.052 · 110 stations
4.4	ML, local (Richter)	Alaska Earthquake Center	Preliminary

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 125 in the 60 days after this one and 108 in the 30 days before it.

The first 60 of 125.

From the USGS Earthquake Hazards Program and its partner networks, event us2000jazy (also filed as ak0191f9shb2). Read Thu, Oct 1, 2026, 7:49 PM UTC.