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A 7.4 magnitude earthquake struck western Colombia on August 10, 2026, with the epicentre near San José del Palmar in Chocó.
As of August 12, at least 254 people had died, more than 2,600 were injured and nearly 3,900 were reported missing.
The quake occurred at a depth of about 100 kilometres and damaged around 1,600 buildings and nearly 5,000 homes.
An economic emergency was declared, allowing temporary economic and tax measures without congressional approval.
The United States announced $15.5 million in emergency aid and the European Union activated Copernicus satellite services.
Colombia sits near the meeting point of an unusual number of tectonic plates — the Nazca, Caribbean, Malpelo, North Andes and South American plates. Their movement and subduction, where one plate is forced beneath another, generate persistent seismic activity. The country also lies within the Pacific Ring of Fire, the horseshoe-shaped belt of active plate boundaries around the Pacific basin that accounts for the majority of the world's earthquakes and volcanoes. Layered onto this are major internal fault systems — the Bucaramanga-Santa Marta Fault, the Romeral Fault System and the Eastern Frontal Fault System — each capable of producing significant earthquakes in different parts of the country.
Simple Analogy: A country built at the seam where several sheets of a cracked shell grind past and beneath each other.
Two earthquakes of identical magnitude can produce very different damage depending on how deep the focus lies. Shallow quakes release their energy close to the surface, concentrating shaking over a smaller but more intensely affected area. Deeper events — this one was about 100 kilometres down — spread their energy over a wider region, so shaking is felt across a larger area but is generally less violent directly above the epicentre than a shallow quake of the same magnitude would be. That is why the destruction here extended across Chocó, Pereira and Cali rather than concentrating in one town.
Simple Analogy: A blow struck close to the skin bruises one spot; the same force applied deeper is felt more widely but less sharply at any one point.
GS Paper I > Geography > Geophysical Phenomena; GS Paper III > Disaster Management
General Awareness > International Current Affairs and Geography
General Awareness > International Affairs
The process by which one tectonic plate is forced beneath another, a major source of earthquakes.
The horseshoe-shaped belt of active plate boundaries around the Pacific basin, accounting for most of the world's earthquakes and volcanoes.
The depth below the surface at which an earthquake originates; deeper events spread shaking over a wider area.
The European Union's Earth observation programme, whose satellite services are activated to map disaster damage.
Moment magnitude, the standard modern scale for measuring earthquake size.