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WEEK SEISMICITY REPORT FOR FEBRUARY 6, 2023 TO FEBRUARY 12, 2023
During the week of February 6, 2023, the Alaska Earthquake Center reported 803 earthquakes within the state. The largest earthquake was magnitude 4.3 that occurred on February 7 at 04:31:23 AKST (February 7, 13:31:23 UTC), 111 miles SE of Atka.
This week there were 23 more aftershocks of the M4.5 earthquake that occurred 62 miles NW of Burwash Landing on January 30. They ranged in magnitude from M0.9-M2.2.
Glacial activity decreased compared to the previous week with 2 icequakes detected. One event was reported as felt a M3.3 located 23 miles W of Anchor Point.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 4.3, 111 miles SE of Atka, February 7 04:31:23 AKST
Magnitude 4.0, 22 miles SW of Amchitka, February 10 20:09:33 AKST
Magnitude 3.9, 10 miles NE of Kagamil Island, February 9 20:22:07 AKST
Magnitude 3.8, 94 miles S of Amukta Pass, February 7 03:47:45 AKST
Magnitude 3.6, 38 miles W of Seguam Island, February 7 03:41:59 AKST
Magnitude 3.6, 42 miles SE of Okmok Caldera, February 5 16:04:47 AKST
Magnitude 3.5, 28 miles E of Semisopochnoi Island, February 8 23:06:05 AKST
Magnitude 3.5, 32 miles S of Kantishna, February 11 17:59:56 AKST
Magnitude 3.3, 23 miles W of Anchor Point, February 6 12:58:59 AKST
Magnitude 3.3, 163 miles SE of Kodiak, February 6 23:01:30 AKST
This report was compiled by R. Wilkes
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.