During the week of July 15, 2024, the Alaska Earthquake Center reported 759 earthquakes within the state.

The largest earthquake was a magnitude 6.0, which occurred on July 18 at 19:13:46 AKDT (July 19, 03:13:46 UTC), 41 miles south of Chagulak Island. This event was reported as felt in Adak and generated 17 aftershocks.

The next largest earthquake was a magnitude 4.9, which occurred on July 16 at 11:51:14 AKDT, 11 miles southeast of Little Sitkin Pass. Did you know that the largest recorded intermediate-depth earthquake in this region was the 2014 M7.9 Little Sitkin event? Fun fact: a magnitude 7.9 earthquake is 1,000 times larger than a 4.9, and it releases nearly 32,000 times more energy.

Seasonal glacial activity continued across southeastern Alaska, with 30 icequakes recorded this week. The Earthquake Center also recorded four explosive events just north of Fairbanks, near the Ft. Knox mine.

This week, three events were reported as felt.