Magnitude 0.9 - 50 miles SE of Nikolai




September 19, 2023 07:59:59 AKDT (September 19, 2023 15:59:59 UTC)
62.5446°N 153.1625°W    Depth 5.6 miles (9 km)

This event has 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.