Magnitude 2.1 - 46 miles N of Arctic Village
April 25, 2025 13:58:30 AKDT (April 25, 2025 21:58:30 UTC)
68.7895°N 145.4042°W Depth 0.0 miles (0 km)
This event has not been reviewed by a seismologist
- 86 miles (139 km) E of Pump Station #3
- 90 miles (145 km) SE of Pump Station #2
- 102 miles (165 km) SW of Kaktovik
- 103 miles (167 km) E of Pump Station #4
- 121 miles (196 km) SE of Deadhorse
- 123 miles (199 km) SE of Prudhoe Bay
- 126 miles (204 km) N of Venetie
- 128 miles (207 km) SE of Pump Station #1
- 154 miles (249 km) N of Chalkyitsik
- 154 miles (249 km) N of Fort Yukon
- 154 miles (249 km) NE of Wiseman
- 280 miles (453 km) N 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.
