Colombia Earthquake: Why Was It the Worst of the 21st Century?

A powerful magnitude 7.4 earthquake struck Colombia on August 10, 2026, registering as the most severe seismic event of the 21st century for the nation. The quake's epicenter was pinpointed by the Colombian Geological Service in San José del Palmar, Chocó, at a depth of 103 kilometers. The location proved devastating, significantly impacting the Risaralda and Valle del Cauca regions, as San José del Palmar borders both departments.

Authorities are still assessing the full extent of the damage and continuing search efforts for survivors among the rubble. Regional reports suggest approximately 240 fatalities, though President Abelardo de la Espriella has reported 181 deaths, illustrating the difficulty in consolidating accurate figures during the ongoing emergency. The Chocó region, where the epicenter lies, is one of Colombia's poorest and faces significant access challenges, complicating relief and rescue operations.

Pereira, located about 55 kilometers from the epicenter, has reported around 90 fatalities. Its Matecaña airport has suspended commercial flights due to severe structural damage. In Valle del Cauca, the death toll stands at 130, with 95 in Cali and 35 in other municipalities. Notably, Cali had recently hosted President de la Espriella's inauguration just three days prior to the earthquake. Quibdó, the capital of Chocó, has recorded 14 deaths and was the first city visited by the president following the disaster.

The Colombian Geological Service has registered 103 aftershocks, six of which exceeded magnitude three, and one surpassed magnitude four. Experts explain the earthquake originated from a subduction mechanism, where the Nazca plate slides beneath the South American plate, releasing accumulated energy. This differs from recent earthquakes in Venezuela, which involved the Caribbean plate at shallower depths. The quake's impact is being compared to the 1999 Armenia earthquake, which caused 1,185 deaths and widespread destruction.