How debris flows happen – LA Times

Research led by Michael Lamb, professor of geology at California Institute of Technology, shows that debris flows and mudslides in the San Gabriel Mountains are the result of soil that has been stripped from steep hillsides during fire. The stripped soil accumulates in river channels until a storm initiates a …

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Maps show the mudslide and debris flow threat from the Thomas fire

The U.S. Geological Survey studied the Thomas fire’s burn area to determine its vulnerability to flash floods, mudslides and debris flows. The Thomas fire is California’s largest wildfire on record, burning more than 280,000 acres during its destructive march across Ventura and Santa Barbara counties. Montecito @latimesgraphics La Conchita @latimesgraphics …

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