Magnitude 2.0 - 35 miles S of Kaktovik
June 2, 2025 18:12:57 AKDT (June 3, 2025 02:12:57 UTC)
69.6250°N 143.7516°W Depth 8.0 miles (12 km)
This event has not been reviewed by a seismologist
- 113 miles (183 km) N of Arctic Village
- 117 miles (189 km) E of Prudhoe Bay
- 117 miles (189 km) E of Pump Station #2
- 118 miles (191 km) E of Deadhorse
- 123 miles (199 km) E of Pump Station #1
- 136 miles (220 km) NE of Pump Station #3
- 162 miles (262 km) NE of Pump Station #4
- 181 miles (293 km) NW of Old Crow
- 193 miles (312 km) N of Venetie
- 204 miles (330 km) E of Umiat
- 205 miles (332 km) N of Chalkyitsik
- 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.
