Magnitude 1.8 - 20 miles N of Iguig

September 12, 2023 17:25:13 AKDT (September 13, 2023 01:25:13 UTC)
59.6021°N 156.0013°W    Depth 4.2 miles (6 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.