Just 17 minutes ago, a 4.4-magnitude earthquake struck near San Antonio, San Antonio Province, Region de Valparaiso, Chile. The tremor was recorded in the evening on Saturday, August 1st, 2026, at 8:21 pm local time, at a shallow depth of 25.75 km below the surface.The event was filed by the United States Geological Survey, the first seismological agency to report it.A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.4 earthquake as well. A third agency, The National Seismological Center (Centro Sismológico Nacional, CSN) of the University of Chile, reported the same quake at magnitude 4.6.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 Algarrobo (pop. 10,200) located 40 km from the epicenter, Cartagena (pop. 18,000) 42 km away, San Antonio (pop. 87,700) 43 km away, Casablanca (pop. 24,500) 66 km away, Valparaiso (pop. 282,400) 68 km away, Vina del Mar (pop. 334,200) 73 km away, Quilpue (pop. 130,300) 79 km away, and Villa Alemana (pop. 97,300) 83 km away.VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.Earthquake data: Date & time: Aug 2, 2026 01:21 am (Universal Time) local time (2 Aug 2026 01:21 GMT)Magnitude: 4.4Depth: 25.75 kmEpicenter latitude / longitude: 33.53°S / 72.06°W (San Antonio, Region de Valparaiso, Chile)Primary data source: USGS