Mudflow
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A mudflow, also known as mudslide or mud flow, is a form of mass wasting involving fast-moving flow of debris and dirt that has become liquified by the addition of water. Such flows can move at speeds
Mailboxes caught in a mudflow following the May 1980 Mount St. Helens volcanic eruption.
The Mameyes mudflow disaster, in barrio Tibes, Ponce, Puerto Rico, was caused by heavy rainfall from Tropical Storm Isabel in 1985. The mudflow destroyed more than 100 homes and claimed an estimated 300 lives.
Debris
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Debris is rubble, wreckage, ruins, litter and discarded garbage/refuse/trash, scattered remains of something destroyed, or, as in geology, large rock fragments left by a melting glacier, etc. Dependin
Debris still present 10 days after the Joplin tornado struck the city of Joplin, Missouri.
Obsidian debris (talus), Obsidian Dome, California.
Marine debris washed ashore on Hawaii
A child plays on an abandoned M41 tank outside Phnom Penh, Cambodia in 1991