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7.4-Magnitude Earthquake Strikes Western Colombia, Killing More Than 70

Elena MarquezPublished 4d ago4 min readBased on 4 sources
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7.4-Magnitude Earthquake Strikes Western Colombia, Killing More Than 70
Photo by Ben Bowes / CC BY 2.0

A 7.4-magnitude earthquake struck western Colombia at 7:34 a.m. local time (13:34 BST) on Monday, 10 August 2026, killing more than 70 people across multiple departments and causing widespread structural damage to buildings, homes, and at least six airports in the country's coffee-growing and Pacific coastal regions.

The epicenter was located 5 km east of San José del Palmar, in the western department of Chocó, according to the U.S. Geological Survey, which assigned the event ID us6000tjl2. The Servicio Geológico Colombiano (SGC) independently listed the earthquake on its seismicity portal, also placing it at San José del Palmar. Both the USGS and the SGC reported the magnitude and timing, and the tremor was felt as far away as neighbouring Venezuela. The Guardian

Colombia's western Andean corridor bore the brunt. Authorities reported 27 deaths in Valle del Cauca department, where Cali mayor Alejandro Eder said at least 20 buildings had collapsed and some people were trapped inside. In Pereira, the capital of Risaralda department, 18 deaths were reported. The newspaper El Espectador, citing government officials, reported at least 72 people killed nationwide, 40 of them in Risaralda. At least two deaths were confirmed in Manizales, the capital of Caldas department. The Guardian

The toll across the three departments of the Eje Cafetero (coffee axis) and Valle del Cauca reflects the density of mid-size urban centres situated along active fault systems in Colombia's western cordillera. Pereira, Manizales, and Cali are all built in the Cauca Valley and Central Andes corridor, a region with a documented history of seismic events, where building stock varies widely in seismic resilience.

Manizales mayor Jorge Eduardo Rojas Giraldo said at least 12 buildings and 20 homes there had been partially or completely destroyed, and warned citizens to be ready for aftershocks and not to re-enter buildings. The cathedral of Manizales was also damaged. In Chocó's capital, Quibdó, Governor Nubia Carolina Córdoba reported injuries and severe structural damage. The Guardian

Colombian aviation authorities said the airports in Pereira, Manizales, Quibdó, Cartago, Armenia, and Buenaventura had sustained damage. The geographic spread of affected airfields spans roughly 250 km from the Caribbean-adjacent Chocó lowlands through the central Andean valleys, complicating logistics for any emergency relief airlift. Buenaventura, on the Pacific coast, is Colombia's principal Pacific port, and damage to its airport could affect supply chains for the region.

Colombia's president, Abelardo de la Espriella, who took office on Friday, 8 August, flew to Bogotá to personally lead the government's earthquake response. The timing places the disaster squarely in the first days of a new administration, before ministerial appointments and emergency-response protocols are fully in place. U.S. Secretary of State Marco Rubio said the Trump administration was closely monitoring the situation and stood ready to offer support. The Guardian

The quake follows a catastrophic seismic event in the broader region: twin earthquakes struck Venezuela's northern coast on 24 June 2026, killing more than 6,000 people. That disaster, just seven weeks earlier, would have already placed regional emergency management and humanitarian agencies on heightened alert. The Colombian event, while far less lethal in comparative terms, strains those same response networks, and the proximity of the two events raises questions about whether the northern Andes and Caribbean plate-boundary zone is in a period of heightened seismic release. The two events, however, occurred on different tectonic systems: the Venezuelan quakes on the Caribbean–South American plate boundary along the northern coast, and the Colombian event in the complex collision zone of the Nazca, South American, and Caribbean plates in the western cordillera. The broader context here is that Colombia's western Andes sit above one of the most seismically active zones in the Western Hemisphere, where the Nazca plate subducts beneath the South American plate. A 7.4-magnitude event is major by any classification: it can cause serious damage to well-built structures and catastrophic damage to poorly engineered ones, particularly in urban centres with mixed building stock like Manizales, Pereira, and Cali.

The discrepancy between the initial death counts reported by individual mayors and the higher aggregate figure cited by El Espectador points to the early stage of casualty accounting. In major seismic events, confirmed deaths typically rise over the first 24 to 48 hours as collapsed structures are cleared and access is restored to remote areas. The department of Chocó, where the epicenter is located, is among Colombia's most geographically isolated and least infrastructure-connected regions. Full assessment of damage there is likely to lag behind the more accessible Andean cities.