🌎 Strong 5.4 Earthquake Strikes Near Fox River, Alaska. A magnitude 5.4 earthquake struck near Fox River on the Kenai Peninsula at 9:33 a.m. local time. The quake originated only 24 kilometers deep, along the subduction boundary where the Pacific Plate pushes beneath North America. This is the same tectonic system that produced the 1964 magnitude 9.2 megathrust, one of the largest earthquakes in recorded history. The shallow depth indicates ongoing stress within the locked portion of the bounda