Magnitude 2.4 - 39 miles NE of Kobuk
March 24, 2024 07:56:28 AKDT (March 24, 2024 15:56:28 UTC)
67.3945°N 156.1681°W Depth 3.6 miles (5 km)
This event has been reviewed by a seismologist
- 44 miles (71 km) NE of Shungnak
- 50 miles (81 km) NE of Ambler
- 107 miles (173 km) NW of Hughes
- 111 miles (179 km) NW of Allakaket
- 117 miles (189 km) NE of Selawik
- 118 miles (191 km) N of Huslia
- 118 miles (191 km) E of Kiana
- 125 miles (202 km) W of Bettles
- 127 miles (205 km) W of Anaktuvuk Pass
- 136 miles (220 km) E of Noorvik
- 153 miles (248 km) W of Pump Station #5
- 295 miles (478 km) NW 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.
