Magnitude 2.4 - 46 miles N of Arctic Village
March 23, 2024 12:21:21 AKDT (March 23, 2024 20:21:21 UTC)
68.7660°N 146.025°W Depth 8.0 miles (12 km)
This event has been reviewed by a seismologist
- 70 miles (113 km) E of Pump Station #3
- 79 miles (128 km) SE of Pump Station #2
- 87 miles (141 km) E of Pump Station #4
- 111 miles (179 km) SW of Kaktovik
- 114 miles (184 km) SE of Deadhorse
- 117 miles (189 km) SE of Prudhoe Bay
- 121 miles (196 km) SE of Pump Station #1
- 122 miles (197 km) N of Venetie
- 141 miles (228 km) NE of Wiseman
- 150 miles (243 km) NE of Coldfoot
- 151 miles (244 km) E of Anaktuvuk Pass
- 275 miles (445 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.
