Just 9 minutes ago, a magnitude 3.1 earthquake struck near San Jose, San José, Provincia de San Jose, Costa Rica. The tremor was recorded in the early evening on Tuesday, October 27th, 2026, at 6:53 pm local time, at a very shallow depth of 9. km below the surface.The event was reported by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.Our monitoring service identified a second report from the citizen-seismograph network RaspberryShake, which also listed the quake at magnitude 3.1.Weak shaking might have been felt in Sabanilla (pop. 1000), located 4 km from the epicenter; Alajuela (pop. 47,500), 8 km away; and Mercedes (pop. 26,000), 15 km away.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include San Francisco (pop. 55,900), located 16 km from the epicenter; Heredia (pop. 21,900), 17 km away; San Pablo (pop. 21,700), 19 km away; San Rafael (pop. 25,400), 21 km away; San Jose (pop. 335,000), 24 km away; San Vicente (pop. 34,400), 26 km away; and San Vicente de Moravia (pop. 34,400), 26 km away.Earthquake data: Date & time: Oct 27, 2026 06:53 pm (GMT -6) local time (28 Oct 2026 00:53 GMT)Magnitude: 3.1Hypocenter depth: 9.00 kmEpicenter coordinates: 10.07°N / 84.26°W (Provincia de Alajuela, Costa Rica)Primary data source: EMSC