Vargas tragedy
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The Vargas tragedy was a natural disaster that occurred in Vargas State, Venezuela, on 15 December 1999, when torrential rains caused flash floods and debris flows that killed tens of thousands of peo
A part of Vargas state after the disaster, with scars from the mudslides visible on the mountains
A section of Los Corales, one of the neighborhoods in the Vargas state that suffered the heaviest destruction
Oversteepened hillslopes failed during the rainstorm, sending landslides of soil into the channels (such as the braided river at bottom) and supplying sediment to flash floods and debris flows. The transmission tower on the right side of the image is 30 meters (98 ft) tall.
A 2.9-meter (9 ft 6 in) thick debris flow deposit from December 1999 is exposed by river incision during late-stage floods.
Armero tragedy
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The Armero tragedy occurred following the eruption of the Nevado del Ruiz stratovolcano in Tolima, Colombia, on November 13, 1985. The volcano's eruption after 69 years of dormancy caught nearby towns
Nevado del Ruiz seen from space. The summit ice cap and glaciers surround the dark Arenas crater.
The summit of Nevado del Ruiz in late November 1985
Armero was located in the center of this photograph, taken in late November 1985
Only a few buildings and structures remained standing after the mud and debris flows ravaged the town of Armero