Summary

Magnitude 1.8 - 15 miles N of Nikolai

September 10, 2023 20:48:37 AKDT (September 11, 2023 04:48:37 UTC)
63.2333°N 154.4761°W Depth 8.3 miles (13 km)

This event has been reviewed by a seismologist

39 miles (63 km) W of Telida
40 miles (64 km) NE of McGrath
53 miles (85 km) E of Takotna
80 miles (129 km) SW of Lake Minchumina
108 miles (175 km) S of Ruby
111 miles (179 km) W of Kantishna
124 miles (201 km) NE of Flat
127 miles (205 km) SE of Galena
130 miles (210 km) NW of Hayes Volcano
133 miles (215 km) N of Lime Village
136 miles (220 km) NE of Red Devil
203 miles (329 km) NW of Anchorage
233 miles (377 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.