A shallow magnitude 4.0 earthquake was reported early morning near Stanley, Custer County, Idaho, USA.According to the United States Geological Survey, the quake hit on Tuesday, June 3rd, 2025, at 1:34 am local time at a shallow depth of 10 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.A second report was later issued by The Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 4.0 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 4.0.Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter. Weak shaking might have been felt in Stanley (pop. 68) located 10 miles from the epicenter.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Challis (pop. 1000) located 39 miles from the epicenter, Sun Valley (pop. 1,400) 55 miles away, and Ketchum (pop. 2,700) 56 miles away.Earthquake data: Date & time: Jun 3, 2025 01:34 am (GMT -6) local time (3 Jun 2025 07:34 GMT)Magnitude: 4.0Depth: 16.11 kmEpicenter latitude / longitude: 44.35°N / 114.99°W (Custer County, Idaho, United States)Primary data source: USGS