Summary

Magnitude 1.2 - 48 miles SE of Nikolai

September 20, 2023 17:11:52 AKDT (September 21, 2023 01:11:52 UTC)
62.5647°N 153.196°W Depth 1.8 miles (2 km)

This event has been reviewed by a seismologist

57 miles (92 km) S of Telida
71 miles (115 km) N of Hayes Volcano
77 miles (124 km) NW of Skwentna
80 miles (129 km) E of McGrath
93 miles (150 km) N of Mt. Spurr
95 miles (154 km) S of Lake Minchumina
95 miles (154 km) E of Takotna
96 miles (155 km) SW of Kantishna
100 miles (162 km) W of Talkeetna
111 miles (179 km) NE of Lime Village
117 miles (189 km) NW of Willow
142 miles (230 km) NW of Anchorage
230 miles (372 km) SW of Fairbanks

Magnitude type: M_l
Event type: earthquake

Tectonic Setting of Southwest Alaska

Seismicity in Southwest Alaska is very sparse. Known faults include the Iditarod-Nixon Fork and the western Denali Fault. Neither fault system has documented historical or Holocene earthquake activity. On average this region produces one M4-5 earthquake every other year.