The National Seismological Center (Centro Sismológico Nacional, CSN) of the University of Chile reported a magnitude 4.5 quake in Chile near Valparaiso, Provincia de Valparaíso, Region de Valparaiso, only 29 minutes ago. The earthquake hit late at night on Monday, July 20th, 2026, at 11:28 pm local time at a shallow depth of 27. km. 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.Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 4.5 as well.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 41 km from the epicenter, Valparaiso (pop. 282,400) 54 km away, Cartagena (pop. 18,000) 55 km away, and San Antonio (pop. 87,700) 58 km away.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Vina del Mar (pop. 334,200) located 61 km from the epicenter, Quilpue (pop. 130,300) 69 km away, Concon (pop. 42,200) 70 km away, and Villa Alemana (pop. 97,300) 74 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: Jul 20, 2026 11:28 pm (GMT -5) local time (21 Jul 2026 04:28 GMT)Magnitude: 4.5Depth: 27.00 kmEpicenter latitude / longitude: 33.3°S / 72.12°W (Region de Valparaiso, Chile)Primary data source: CSN