Magnitude 1.9 - 40 miles NW of Chalkyitsik

May 21, 2023 21:33:05 AKDT (May 22, 2023 05:33:05 UTC)
67.1179°N 144.611°W Depth 6.7 miles (10 km)

This event has been reviewed by a seismologist

43 miles (69 km) NE of Fort Yukon
49 miles (79 km) E of Venetie
68 miles (110 km) NE of Birch Creek
74 miles (119 km) S of Arctic Village
91 miles (147 km) N of Circle
92 miles (149 km) NE of Beaver
107 miles (173 km) N of Central
133 miles (215 km) W of Old Crow
145 miles (235 km) NE of Stevens Village
148 miles (239 km) E of Wiseman
150 miles (243 km) E of Coldfoot
180 miles (291 km) NE of Fairbanks

Magnitude type: M_l²
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. Together with the North Slope, this seismic zone produces a few magnitude 4-5 earthquakes per year.