During the week of December 18, 2023, the Alaska Earthquake Center reported 728 earthquakes within the state. The largest earthquake was magnitude 6.1 that occurred on December 21 at 05:55:57 AKST (December 21, 14:55:57 UTC), 54 miles S of Atka Pass. This event was followed by 27 aftershocks with magnitude ranging from 4.9 to 2.0.

Some of the notable events include a magnitude 4.7 earthquake that occurred 56 miles S of Tanaga Volcano on December 19, 2023 16:54:11 AKST, a magnitude 4.5 earthquake that occurred 55 miles S of Tanaga Volcano on December 19, 2023 17:04:50 AKST,  and a magnitude 4.1 earthquake that occurred 45 miles S of Kaktovik on December 23, 2023 14:47:51 AKST.

There were 15 icequakes recorded in the Prince William Sound region, Icy Bay and Yakutat Bay.

1 event was reported as felt.