The Mocoa landslide was a natural disaster that took place in 2017. Pre-dawn on 1 April 2017, locally heavy rain triggered flash flooding and landslides in the city of Mocoa, Putumayo, Colombia, killing at least 336 people, injuring 400, and leaving 200 others missing. It is the third-deadliest weather-related disaster in Colombian history, and is regarded as the worst catastrophe in the history of Mocoa.
Why this event still matters
Historical incidents shape the rules that protect people today — building codes, evacuation policy, warning systems and inspection regimes almost always trace back to a specific disaster. Studying 2017 Putumayo landslide alongside current events is how preparedness improves.
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