Magnitude 1.7 - 52 miles W of Old Crow
January 8, 2025 04:26:36 AKST (January 8, 2025 13:26:36 UTC)
67.7444°N 141.5305°W Depth 9.4 miles (15 km)
This event has been reviewed by a seismologist
- 96 miles (155 km) NE of Chalkyitsik
- 107 miles (173 km) E of Arctic Village
- 129 miles (209 km) NE of Fort Yukon
- 139 miles (225 km) NE of Venetie
- 150 miles (243 km) NE of Circle
- 155 miles (251 km) NE of Birch Creek
- 173 miles (280 km) S of Kaktovik
- 175 miles (283 km) NE of Central
- 185 miles (299 km) NE of Beaver
- 195 miles (316 km) N of Crooked Creek
- 201 miles (325 km) E of Pump Station #3
- 264 miles (428 km) NE of Fairbanks
- Magnitude type: Ml
- 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.
