Earth ChangesEarthquake strikes just miles from US volcano that’s set to erupt Posted on August 13, 2025 by Administrator An earthquake was detected just miles north of an Alaskan volcano showing signs of unrest and potential eruption. The US Geological Survey reported a magnitude 4.6 quake near Petersville, about 86 miles from Mount Spurr. The Alaska Earthquake Center said: ‘We have reviewed a M4.6 earthquake that occurred at 10:38 a.m. local time, 52.4 miles deep and 34 miles north of Skwentna.’