Magnitude 2.4 - 25 miles NW of Hughes

March 12, 2023 13:21:36 AKDT (March 12, 2023 21:21:36 UTC)
66.3680°N 154.6129°W Depth 1.3 miles (2 km)

This event has been reviewed by a seismologist

56 miles (90 km) W of Allakaket
68 miles (110 km) NE of Huslia
72 miles (116 km) SE of Kobuk
78 miles (126 km) SE of Shungnak
89 miles (144 km) SW of Bettles
101 miles (163 km) SE of Ambler
110 miles (178 km) NW of Tanana
113 miles (183 km) W of Pump Station #5
115 miles (186 km) N of Ruby
131 miles (212 km) NE of Galena
135 miles (218 km) SW of Coldfoot
223 miles (361 km) NW 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.