CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins81% CONFIDENCEOverall confidence: 81%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better8.5 years ago
Happened as dated, per the source[1]: "On 12 May, a sudden release of water from the dam flooded municipalities of Puerto Valdivia and Taraza downstream."A blocked diversion tunnel at Colombia's roughly $4 billion Hidroituango hydroelectric project triggered flooding and landslides that forced thousands of people downstream to evacuate.
$4B