Magnitude 4.3 - 33 miles W of St. George
October 30, 2023 16:10:01 AKDT (October 31, 2023 00:10:01 UTC)
56.5863°N 170.407°W Depth 4.1 miles (6 km)
This event has been reviewed by a seismologist
- 56 miles (90 km) S of St. Paul
- 205 miles (332 km) NW of Bogoslof Island
- 231 miles (374 km) NW of Makushin Volcano
- 236 miles (382 km) N of Okmok Caldera
- 241 miles (390 km) NW of Dutch
- 242 miles (392 km) NW of Unalaska
- 243 miles (393 km) NW of Akutan Pass
- 245 miles (397 km) N of Uliaga Island
- 248 miles (402 km) N of Mt. Recheshnoi
- 249 miles (403 km) NW of Akutan
- 249 miles (403 km) N of Mt. Vsevidof
- Magnitude type: Mb2
- Event type: earthquake
Tectonic Setting of the Bering Sea
The northern part of the Bering Sea includes a wide, diffuse zone of seismicity extending from western Alaska across the Bering Strait into eastern Russia. This zone is believed to mark the northern boundary of the Bering microplate. The central region of the Bering Sea is virtually aseismic, with most seismicity concentrated along the continental shelf. The southern edge is marked by the Aleutian Islands archipelago, where seismicity is associated with ongoing subduction processes. The largest recorded earthquake in the Bering Sea, of magnitude 6.6, occurred in 1991 and was located 160 miles (257 km) southwest of St. Matthew Island. In 2010, a magnitude 6.5 earthquake occurred about 150 miles (241 km) northwest of the 1991 earthquake.
