#mocoa

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Artist : Mocoa (pixiv / twitter)

On The Road / Columbia

1 apr 2017

To Columbia from Ecuador by Bus, Colectivo, Taxi and Foot...

Quito -> Tulcan -> Ipiales -> Pasto -> Mocoa -> Fin del Mundo

Colombian slide disaster: Here's how the 'debris flow' likely occurred

A lethal mix of gravity, water and dirt combined to create an “avalanche” that tore through a small Colombian city, killing more than 200.

What happened in Mocoa is known as a “debris flow,” which came during an unusually wet season, topped off with a shorter period of intense rain, federal landslide scientist Jonathan Godt said. He said he reviewed images and video of the Mocoa disaster, noting the mountains surrounding the city.

“That very heavy rainfall makes the soil like goo, makes it easy to flow. It just starts sliding down the hillside,” said Godt, coordinator of the U.S. Geological Survey’s landslide hazards program. “My guess is that it was moving very fast and would have been full of rock and boulders and pieces of buildings. For someone experiencing it, an avalanche would be a very accurate description.”

During the pre-dawn hours of 1 April 2017, heavy rain triggered flash flooding and landslides in the city of Mocoa, in the department of Putumayo, southwestern Colombia. As of 4 April, the death toll has gone up to 290 people, including 144 children. More than 400 have been injured and 441 others are still missing, which is why casualties may increase in the next days.

President Juan Manuel Santos declared a state of emergency. More than 2,500 personnel —including 1,400 soldiers and 800 police officers— are scouring debris for survivors. Mocoa and a big portion of Putumayo have no electricity service. Water service has also been affected in the city.