Magnitude 2.7 - 33 miles NE of Kobuk
January 12, 2025 16:55:50 AKST (January 13, 2025 01:55:50 UTC)
67.3271°N 156.2753°W Depth 8.8 miles (14 km)
This event has been reviewed by a seismologist
- 38 miles (61 km) NE of Shungnak
- 45 miles (72 km) E of Ambler
- 105 miles (170 km) NW of Hughes
- 112 miles (181 km) NW of Allakaket
- 113 miles (183 km) N of Huslia
- 113 miles (183 km) NE of Selawik
- 114 miles (184 km) E of Kiana
- 127 miles (205 km) W of Bettles
- 131 miles (212 km) SW of Anaktuvuk Pass
- 132 miles (214 km) E of Noorvik
- 150 miles (243 km) NE of Buckland
- 295 miles (478 km) NW 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.
