Small magnitude 3.9 quake hits 20 miles southwest of Karluk, Alaska, United States in the afternoon

Just 4 minutes ago, a 3.9-magnitude earthquake struck near Karluk, Kodiak Island, Alaska, USA. The tremor was recorded in the afternoon on Wednesday, April 8th, 2026, at 5:16 pm local time, at a shallow depth of 13 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from The Incorporated Research Institutions for Seismology (IRIS) which listed the quake at magnitude 3.9 as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.8.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Karluk (pop. 37) located 20 miles from the epicenter, Larsen Bay (pop. 88) 31 miles away, Akhiok (pop. 72) 32 miles away, and Old Harbor (pop. 220) 52 miles away.

Earthquake data:
Date & time: Apr 9, 2026 01:16 am (Universal Time) local time (9 Apr 2026 01:16 GMT)
Magnitude: 3.9
Depth: 21.60 km
Epicenter latitude / longitude: 57.31°N / 154.69°W (Kodiak Island Borough, Alaska, United States)
Primary data source: USGS
https://www.volcanodiscovery.com/earthquake/news/299568/Small-magnitude-39-quake-hits-20-miles-southwest-of-Karluk-Alaska-United-States-in-the-afternoon-.html