Magnitude 1.4 - 30 miles NE of Venetie
April 20, 2025 12:05:08 AKDT (April 20, 2025 20:05:08 UTC)
67.2643°N 145.5277°W Depth 22.2 miles (35 km)
This event has not been reviewed by a seismologist
- 49 miles (79 km) N of Fort Yukon
- 59 miles (95 km) S of Arctic Village
- 65 miles (105 km) NW of Chalkyitsik
- 70 miles (113 km) N of Birch Creek
- 81 miles (131 km) NE of Beaver
- 108 miles (175 km) N of Circle
- 119 miles (192 km) N of Central
- 122 miles (197 km) E of Wiseman
- 124 miles (201 km) E of Coldfoot
- 128 miles (207 km) SE of Pump Station #4
- 131 miles (212 km) NE of Stevens Village
- 179 miles (290 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.
