debris flow


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debris flow

[də′brē ‚flō]
(geology)
A variety of rapid mass movement involving the downslope movement of high-density coarse clast-bearing mudflows, usually on alluvial fans.
References in periodicals archive ?
Good progress has been made by the crews since last week clearing the debris flow materials at the major landslide sites, says Mr Crow.
The notice acknowledges that homeowners' and certain commercial property insurance policies frequently have exclusions for losses from mudflow, debris flow, mudslide, landslide or other similar events.
The earlier lava fountain episodes were observed as incessant rain over Bicol since Friday triggered a debris flow on a stream between the Anoling river in Camalig town and Miisi river in Daraga town.
In addition to destroying 100 homes, the debris flow from the mudslides has damaged hundreds of other structures, officials said.
The deaths were reported in the Montecito and Carpinteria areas northwest of Los Angeles, which were severely hit by flooding and a debris flow, Amber Anderson with the Santa Barbara Office of Emergency Services confirmed to Fox News.
The 101 Freeway was shut down in both directions because of flooding and debris flow, spanning an area from Santa Barbara to Ventura, according to the California Highway Patrol.
Climate change is caused by global warming which is direct threat to human being in mountainous regions in the form of disaster like flood, flash flood, GLOF and debris flow e.
Rain, snow, and debris flow through valleys and into gutters.
She proposes a regional method for assessing flash flood susceptibility and for identifying debris flow predisposition at the watershed scale.
For example, a catastrophic debris-flow event hit four towns in Wenchuan County along the Duwen highway, part of the China National Highway G213, at midnight on July 10, 2013; this event broke out simultaneously in seven debris flow gullies.
This facies is interpreted to have been deposited from a debris flow as it is consistently represented by thick beds containing boulders that show no orientation, Other conglomerates containing tabular clasts which are orientated E-W are interpreted to be channel fills that carried coarse sand grade material from the slope edge into the basin.
This population is particularly vulnerable to debris flow caused by heavy rainfall.