Magnitude 2.2 - 24 miles W of Beaver
November 16, 2023 23:40:42 AKST (November 17, 2023 08:40:42 UTC)
66.4612°N 148.2264°W Depth 20.7 miles (33 km)
This event has not been reviewed by a seismologist
- 40 miles (64 km) NE of Stevens Village
- 60 miles (97 km) NE of Pump Station #6
- 62 miles (100 km) SW of Venetie
- 66 miles (107 km) N of Livengood
- 68 miles (110 km) W of Birch Creek
- 71 miles (115 km) E of Pump Station #5
- 76 miles (123 km) SE of Coldfoot
- 80 miles (129 km) N of Pump Station #7
- 82 miles (132 km) W of Fort Yukon
- 83 miles (134 km) SE of Wiseman
- 86 miles (139 km) NE of Rampart
- 113 miles (183 km) N of Fairbanks
- Magnitude type: Ml2
- Event type: earthquake
Tectonic Setting of the Brooks Range
Seismicity in the Brooks Range is characterized by intraplate earthquakes associated with mountain building and crustal reorganization. A broad earthquake band extends from northeast of the Brooks Range toward the Beaufort Sea. Earthquake source mechanisms comprise a mixture of strike-slip and normal faulting events, indicative of north-northwest compression and northeast extension. A magnitude 6.4 earthquake on August 12, 2018 located 43 miles (69 km) south of Kaktovik was the largest earthquake ever recorded north of the Brooks Range. It produced an energetic aftershock sequence that continues to this day. In 2019, a vigorous swarm sequence began in the Purcell Mountains. More than 9,000 earthquakes have been recorded as part of this swarm through the end of 2021, including five earthquakes with magnitudes larger than 5. At present, this swarm continues, though at a decreased activity level.
