Summary

Magnitude 1.9 - 21 miles N of Iguig

September 12, 2023 17:25:13 AKDT (September 13, 2023 01:25:13 UTC)
59.6163°N 156.0141°W Depth 5.0 miles (8 km)

This event has been reviewed by a seismologist

40 miles (64 km) W of Iliamna
40 miles (64 km) W of Newhalen
44 miles (71 km) W of Kokhanok
45 miles (72 km) E of Koliganek
46 miles (74 km) NE of Levelock
47 miles (76 km) E of New Stuyahok
48 miles (77 km) SW of Nondalton
55 miles (89 km) E of Ekwok
68 miles (110 km) N of King Salmon
68 miles (110 km) W of Pedro Bay
71 miles (115 km) NE of Naknek
181 miles (293 km) NW of Kodiak
236 miles (382 km) SW of Anchorage

Magnitude type: M_l²
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.