Magnitude 1.0 - 38 miles E of Wiseman
November 18, 2022 19:18:41 AKST (November 19, 2022 04:18:41 UTC)
67.5641°N 148.7169°W Depth 2.8 miles (4 km)
This event has been reviewed by a seismologist
- 44 miles (71 km) NE of Coldfoot
- 61 miles (98 km) S of Pump Station #4
- 72 miles (116 km) NW of Venetie
- 74 miles (119 km) NE of Pump Station #5
- 88 miles (142 km) SE of Anaktuvuk Pass
- 88 miles (142 km) S of Pump Station #3
- 91 miles (147 km) SW of Arctic Village
- 91 miles (147 km) NW of Beaver
- 91 miles (147 km) NE of Bettles
- 108 miles (175 km) N of Stevens Village
- 116 miles (188 km) NW of Fort Yukon
- 191 miles (309 km) N of Fairbanks
- Magnitude type: Ml2
- 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.