A magnitude 7.4 earthquake struck Medellín and other Colombian cities on Monday, Aug. 10, killing 111 people [1, 4].

The disaster paralyzed one of Colombia's largest urban centers, forcing the closure of critical infrastructure and prompting widespread evacuations in high-density residential areas.

Emergency officials reported 87 injuries following the quake [3]. In Medellín, the city's metro system and schools were closed as a precaution while rescue teams conducted inspections of damaged structures [5]. The tremor was felt across several major cities, including Bogotá, Cali, Barranquilla, and Pereira [2].

Residents described scenes of panic as buildings swayed. Luis Gadea said, "La estructura se estremeció con muchísima fuerza" [6]. Eduardo Silva, a Peruvian resident who experienced the shaking from the 17th floor of a building, said it was "muy intenso" [7]. Singer Gonín also described the chaos, saying, "Salimos corriendo" [8].

While some reports suggested a lower magnitude of 6.7 and an epicenter in Chocó, other primary records indicate the 7.4 magnitude event directly impacted Medellín and surrounding regions [1, 9].

Rescue operations continued throughout Monday as authorities worked to clear debris and locate survivors. Local government agencies have not yet released a full list of the deceased, but the death toll remains at 111 [3].

"La estructura se estremeció con muchísima fuerza"

The scale of the casualties and the immediate shutdown of Medellín's transit system highlight the vulnerability of Colombia's urban infrastructure to high-magnitude seismic events. The discrepancy in reported magnitudes and epicenters underscores the initial chaos of disaster reporting, but the verified death toll confirms this as a significant humanitarian crisis for the region.