Magnitude 2.4 - 71 miles N of Arctic Village
March 13, 2023 17:28:17 AKDT (March 14, 2023 01:28:17 UTC)
69.0902°N 144.5407°W Depth 4.6 miles (7 km)
This event has been reviewed by a seismologist
- 75 miles (121 km) S of Kaktovik
- 102 miles (165 km) E of Pump Station #2
- 108 miles (175 km) E of Pump Station #3
- 120 miles (194 km) SE of Deadhorse
- 121 miles (196 km) SE of Prudhoe Bay
- 127 miles (205 km) SE of Pump Station #1
- 129 miles (209 km) NE of Pump Station #4
- 152 miles (246 km) N of Venetie
- 167 miles (270 km) NW of Old Crow
- 170 miles (275 km) N of Chalkyitsik
- 176 miles (285 km) N of Fort Yukon
- 306 miles (496 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.