A magnitude 4.4 earthquake near Rioblanco, Departamento de Tolima, Colombia, was reported just 14 minutes ago by the United States Geological Survey, considered one of the key international agencies monitoring seismic activity worldwide. The earthquake occurred at a very shallow depth of 9.97 km beneath the epicenter late at night on Tuesday, September 22nd, 2026, at 11:36 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 the data and refine their calculations, or as other agencies issue their reports.Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC), which also listed the quake at magnitude 4.4.Based on the preliminary seismic data, the quake should not have caused any significant damage but was probably felt by many people as light vibrations in the area of the epicenter. Weak shaking might have been felt in Rioblanco (pop. 19,100), located 22 km from the epicenter; Chaparral (pop. 20,000), 28 km away; Planadas (pop. 21,600), 57 km away; Pradera (pop. 44,600), 64 km away; Palmira (pop. 312,500), 65 km away; Guadalajara de Buga (pop. 114,300), 66 km away; Sevilla (pop. 43,700), 66 km away; and Tulua (pop. 221,700), 66 km away.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ibague (pop. 529,600), located 101 km from the epicenter.VolcanoDiscovery will automatically update the magnitude and depth if they change and follow up if other significant news about the quake becomes 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: Sep 22, 2026 11:36 pm (Bogota time) local time (23 Sep 2026 04:36 GMT)Magnitude: 4.4Hypocenter depth: 9.97 kmEpicenter coordinates: 3.7°N / 75.74°W (Cajamarca, Departamento de Tolima, Colombia)Primary data source: USGS