August 24, 2024 16:09:49 AKDT (August 25, 2024 00:09:49 UTC)
53.5092°N 165.8247°W Depth 21.9 miles (35 km)
This event has not been verified by a seismologist
- 39 miles (63 km) south of Akutan Pass
- 63 km southeast of Dutch
- 43 miles (69 km) south of Akutan
- 52 miles (84 km) southeast of Makushin volcano
- 84 miles (136 km) SW of Westdahl Peak
- 95 miles (154 km) east of Bogoslof Island
- 95 miles (154 km) east of the Okmok Caldera
- 99 miles (160 km) southwest of Fisher Caldera
- 184 km southwest of Shishaldin volcano
- 115 miles (186 km) east of Mount Recheshnoi
- 121 miles (196 km) SW of the Isanotski Peaks
- Size Type: Mm2
- Event type: Earthquake
Tectonic position of the Aleutian Islands
The Aleutian Arc marks the region where the Pacific Plate subducts into the mantle beneath the North American Plate. It is a seismically active region, as evidenced by thousands of earthquakes each year. Since 1900, this region has experienced several large megathrust earthquakes, including the 1957 M8.6 Andreanof Islands earthquake, the 1965 M8.7 Rat Islands earthquake, the 1986 and 1996 M7.9 Andreanof Islands earthquake, and the 2003 M7.8 Rat Islands earthquake. Together, they have ruptured the entire length of the megathrust boundary in this region. Another notable seismic source in the arc is the 10–15 km wide zone of intermediate-depth earthquakes within the subducting Pacific Plate known as the Wadati-Benioff Zone. The largest recorded intermediate-depth earthquake in this region was the magnitude 7.9 Little Sitkin event in 2014. A third source of seismic activity in this region is shallow earthquakes associated with volcanic processes and crustal ruptures within the overlying North American Plate. They occur regularly and can produce violent aftershocks or swarm-like sequences.