Magnitude 3.0 - 45 miles S of Kaktovik
March 8, 2026 14:15:12 AKDT (March 8, 2026 22:15:12 UTC)
69.4709°N 143.5441°W Depth 4.3 miles (6 km)
This event has been reviewed by a seismologist
- 106 miles (171 km) NE of Arctic Village
- 122 miles (197 km) E of Pump Station #2
- 126 miles (204 km) E of Deadhorse
- 126 miles (204 km) SE of Prudhoe Bay
- 132 miles (214 km) E of Pump Station #1
- 137 miles (222 km) E of Pump Station #3
- 162 miles (262 km) NE of Pump Station #4
- 169 miles (274 km) NW of Old Crow
- 185 miles (299 km) N of Venetie
- 195 miles (316 km) N of Chalkyitsik
- 206 miles (334 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.
