Magnitude 1.6 - 15 miles N of Nikolai

September 10, 2023 20:48:36 AKDT (September 11, 2023 04:48:36 UTC)
63.2355°N 154.4712°W    Depth 8.8 miles (14 km)

This event has not been reviewed by a seismologist

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.