Magnitude 2.4 - 49 miles NW of Bettles

September 17, 2022 22:06:56 AKDT (September 18, 2022 06:06:56 UTC)
67.2325°N 153.3062°W    Depth 0.0 miles (0 km)





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.

Contributed by:
1Alaska Earthquake Center
2USGS National Earthquake Information Center
Learn more about magnitude types here