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WEEK SEISMICITY REPORT FOR DECEMBER 19, 2022 TO DECEMBER 25, 2022
During the week of December 19, 2022, the Alaska Earthquake Center reported 968 earthquakes within the state. The largest earthquake was magnitude 4.9 that occurred on December 20 at 23:50:51 AKST (December 21, 08:50:51 UTC), 103 miles SE of King Cove.
Other noteworthy events that occurred outside the subduction zone were M4.6 and M3.9 55 miles SW of Prince Rupert, a M3.7 20 miles SE of Cantwell and a deep event M3.7 32 miles S of Kantishna at a depth of 118km.
Seventeen volcanic events were recorded this week around Katmai and Mt. Trident with magnitudes between M0.8-M2.2.
There were 7 icequakes recorded in Prince William Sound, Yakutat, and Icy Bay. Seven events were reported as felt with magnitudes ranging between M2.8 and M4.5.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 4.9, 103 miles SE of King Cove, December 20 23:50:51 AKST
Magnitude 4.8, 51 miles NW of Attu, December 24 22:57:11 AKST
Magnitude 4.6, 55 miles SW of Prince Rupert, December 24 00:01:22 AKST
Magnitude 4.5, 73 miles S of Unalaska, December 24 11:48:58 AKST
Magnitude 4.4, 57 miles SE of Akutan, December 25 04:27:36 AKST
Magnitude 3.9, 58 miles SW of Prince Rupert, December 24 00:32:59 AKST
Magnitude 3.8, 70 miles SE of Sand Point, December 22 07:25:58 AKST
Magnitude 3.8, 63 miles SE of Akhiok, December 22 01:46:22 AKST
Magnitude 3.7, 32 miles S of Kantishna, December 22 18:45:05 AKST
Magnitude 3.7, 20 miles SE of Cantwell, December 22 08:57:34 AKST
This report was compiled by Ayumi Bakken
The data in this report are preliminary and subject to revision. The earthquake parameters have been determined by the AEC, with supplemental data provided by the USGS National Earthquake Information Center. The data are released on the condition that none of the cooperating agencies may be held liable for any damaged resulting from its authorized or unauthorized use.
For more information on earthquakes and seismology, contact the AEC at 907-474-7320.