A magnitude 4.3 earthquake near San Juan, San Juan Antiguo Barrio, Puerto Rico, was reported only 17 minutes ago by the United States Geological Survey, considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at an intermediate depth of 120.67 km beneath the epicenter late at night on Sunday, April 12th, 2026, at 10:06 pm local time. 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 German Research Centre for Geosciences (GFZ) which listed the quake at magnitude 4.7. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.5, and The Incorporated Research Institutions for Seismology (IRIS) at magnitude 4.3.Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Rio Lajas (pop. 2,300) located 1 km from the epicenter, Toa Alta (pop. 4,500) 3 km away, Toa Baja (pop. 1,900) 7 km away, Vega Alta (pop. 12,000) 7 km away, Corozal (pop. 11,300) 7 km away, Dorado (pop. 13,100) 8 km away, Naranjito (pop. 2,000) 10 km away, Bayamon (pop. 203,500) 13 km away, Vega Baja (pop. 29,300) 14 km away, Morovis (pop. 2,400) 16 km away, Guaynabo (pop. 81,400) 18 km away, Catano (pop. 28,100) 18 km away, Comerio (pop. 4,600) 19 km away, San Juan (pop. 418,100) 20 km away, Ciales (pop. 3,300) 21 km away, Orocovis (pop. 940) 22 km away, Barranquitas (pop. 3,000) 22 km away, Aguas Buenas (pop. 4,600) 23 km away, Manati (pop. 16,100) 23 km away, Cidra (pop. 5,100) 26 km away, Aibonito (pop. 8,900) 27 km away, Trujillo Alto (pop. 75,200) 28 km away, Barceloneta (pop. 22,300) 29 km away, and Caguas (pop. 86,800) 29 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: Apr 12, 2026 10:06 pm (GMT -4) local time (13 Apr 2026 02:06 GMT)Magnitude: 4.3Depth: 120.67 kmEpicenter latitude / longitude: 18.39°N / 66.27°W (Rio Lajas Barrio, Dorado Municipio, Puerto Rico)Primary data source: USGS