Magnitude 2.5 - 56 miles S of Kaktovik
February 10, 2024 00:24:00 AKST (February 10, 2024 09:24:00 UTC)
69.3219°N 143.605°W Depth 7.9 miles (12 km)
This event has been reviewed by a seismologist
- 96 miles (155 km) NE of Arctic Village
- 121 miles (196 km) E of Pump Station #2
- 130 miles (210 km) SE of Deadhorse
- 130 miles (210 km) SE of Prudhoe Bay
- 133 miles (215 km) E of Pump Station #3
- 136 miles (220 km) SE of Pump Station #1
- 156 miles (252 km) NE of Pump Station #4
- 162 miles (262 km) NW of Old Crow
- 175 miles (283 km) NE of Venetie
- 184 miles (298 km) N of Chalkyitsik
- 196 miles (317 km) N of Fort Yukon
- 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.
