Magnitude 4.0 - 48 miles SW of Kaktovik

January 23, 2023 12:44:38 AKST (January 23, 2023 21:44:38 UTC)
69.5383°N 144.7274°W Depth 1.2 miles (1 km)

No reports of this event being felt have been received at this time.

93 miles (150 km) E of Pump Station #2
99 miles (160 km) SE of Deadhorse
99 miles (160 km) SE of Prudhoe Bay
100 miles (162 km) N of Arctic Village
105 miles (170 km) SE of Pump Station #1
112 miles (181 km) NE of Pump Station #3
138 miles (223 km) NE of Pump Station #4
180 miles (291 km) E of Umiat
180 miles (291 km) N of Venetie
191 miles (309 km) NW of Old Crow
200 miles (324 km) NE of Anaktuvuk Pass

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.