Magnitude 1.2 - 32 miles SE of Pump Station #3

May 19, 2023 10:56:48 AKDT (May 19, 2023 18:56:48 UTC)
68.5325°N 147.9008°W    Depth 1.3 miles (2 km)

This event has been reviewed by a seismologist

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.