Magnitude 2.7 - 46 miles S of Kaktovik
April 6, 2026 20:33:20 AKDT (April 7, 2026 04:33:20 UTC)
69.4736°N 143.2034°W Depth 6.2 miles (10 km)
This event has been reviewed by a seismologist
- 110 miles (178 km) NE of Arctic Village
- 130 miles (210 km) E of Pump Station #2
- 133 miles (215 km) E of Prudhoe Bay
- 134 miles (217 km) E of Deadhorse
- 140 miles (226 km) E of Pump Station #1
- 145 miles (235 km) E of Pump Station #3
- 164 miles (265 km) NW of Old Crow
- 169 miles (274 km) NE of Pump Station #4
- 189 miles (306 km) NE of Venetie
- 195 miles (316 km) N of Chalkyitsik
- 208 miles (337 km) N of Fort Yukon
- Magnitude type: ML
- Event type: N/A
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.
