One of the most tragic volcanic events of the 20th century occurred in Colombia in 1985, when an eruption of Nevado del Ruiz generated lahars that swept down river valleys and destroyed communities in its path. With little warning, the volcano began erupting on the afternoon of November 13, 1985. Ash and muddy rain began to fall. Communities were alerted but no formal decision was made to evacuate. Later that evening, a stronger eruption produced pyroclastic flows and surges that mixed with snow
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One of the most tragic volcanic events of the 20th century occurre…
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5.9K views · 196 reactions | One of the most tragic volcanic events...
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Do you know what a lahar is? How about the risks involved with a lahar? (Spoiler: A Lahar is an Indonesian word describing a mudflow or debris flow that originates on the slopes of a volcano.) May is volcano awareness month and we want to help you understand these terms when you might hear them. | Washington Emergency Management Division
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Eruption, Lahar and Resilience: The Aftermath of Mt. Pinatubo Eruption in the Philippines
Eruption, Lahar and Resilience: The Aftermath of Mt. Pinatubo Eruptio…
Feb 13, 2019
earthjournalism.net
#Lahars are floods of water, rock, ash and debris that can happen during and after volcanic eruptions. Lahars can be immensely powerful, destroying bridges and buildings, and traveling great distances to bury vast areas in mud. If you live in a valley or on a flood plain near a volcano, you should be aware of the potential for lahars. If you hear a rumbling from upriver or notice the water levels rising, move to high ground immediately. This video is part of the #VolFilm volcano hazards series.
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