Magnitude 1.3 - 2 miles SW of Allakaket

September 13, 2022 06:34:41 AKDT (September 13, 2022 14:34:41 UTC)
66.5429°N 152.7172°W    Depth 5.0 miles (8 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
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