A very shallow magnitude 3.4 earthquake was reported in the morning near Moreno Valley, Riverside County, California, USA.According to the United States Geological Survey, the quake hit on Monday, April 27th, 2026, at 7:47 am local time at a very shallow depth of 2 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 3.4 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.4.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 Redlands (pop. 71,000) located 4 miles from the epicenter, Loma Linda (pop. 24,000) 4 miles away, Moreno Valley (pop. 204,200) 4 miles away, Colton (pop. 54,600) 8 miles away, San Bernardino (pop. 216,100) 9 miles away, and Highland (pop. 54,900) 9 miles away.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Riverside (pop. 317,300) located 11 miles from the epicenter, Rialto (pop. 103,100) 12 miles away, and Fontana (pop. 212,700) 14 miles away.Earthquake data: Date & time: Apr 27, 2026 07:47 am (GMT -7) local time (27 Apr 2026 14:47 GMT)Magnitude: 3.4Depth: 3.14 kmEpicenter latitude / longitude: 34°N / 117.21°W (San Bernardino County, California, United States)Primary data source: USGS