M3.6 earthquake 146 km WNW of Adak, Alaska

A magnitude 3.6 earthquake struck 146 km WNW of Adak, Alaska on Wed, Jan 9, 2019, 8:08 PM HAST (06:08 UTC), 245 km (152 mi) below the surface.

A larger quake followed: M4.5 119 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
3.6	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.118 · 18 stations
3.0	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: 59 in the 60 days after this one and 59 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event us2000j5gy (also filed as ak019gmzuut). Read Thu, Oct 1, 2026, 8:51 PM UTC.