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WEEK SEISMICITY REPORT FOR FEBRUARY 27, 2023 TO MARCH 5, 2023
During the week of February 27, 2023, the Alaska Earthquake Center reported 787 earthquakes within the state. The largest earthquake was magnitude 4.7 that occurred on March 1 at 21:56:28 AKST (March 2, 06:56:28 UTC), 28 miles W of Lake Minchumina.
Other significant events include a magnitude 4.6 earthquake that occurred 20 miles S of Karluk on February 27, 2023 00:32:57 AKST, and a magnitude 4.5 earthquake that occurred 33 miles SE of Port Graham on February 28, 2023 20:57:59 AKST. These events were reported as felt in the Kodiak Island Region and Kenai Peninsula respectively.
There were 10 volcanic earthquakes with magnitude ranging from 2.0 to 3.4 under Takawangha Volcano in central Aleutians . This volcano is currently at "ORANGE Alert Level WATCH" by the Alaska Volcano Observatory. Please see https://avo.alaska.edu/activity/Takawangha.php for more details.
There were 3 icequakes recorded in the Prince William Sound region.
2 events were reported as felt.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 4.7, 28 miles W of Lake Minchumina, March 1 21:56:29 AKST
Magnitude 4.6, 20 miles SW of Larsen Bay, February 27 00:32:57 AKST
Magnitude 4.5, 33 miles SE of Port Graham, February 28 20:57:59 AKST
Magnitude 4.2, 48 miles SE of Atka, March 4 01:31:38 AKST
Magnitude 4.1, 24 miles W of Mt. Martin, March 2 23:33:36 AKST
Magnitude 4.0, 12 miles NW of Amchitka, March 3 19:10:21 AKST
Magnitude 3.7, 23 miles NW of Hughes, February 28 21:04:02 AKST
Magnitude 3.4, 179 miles SE of Kodiak, March 3 01:20:33 AKST
Magnitude 3.4, 29 miles S of Bobrof Island, March 4 13:49:45 AKST
Magnitude 3.3, 92 miles SW of Akhiok, March 2 14:32:00 AKST
This report was compiled by Shah Khan
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.