Landslide Basics

Why do landslides matter?

Landslides affect all 50 states and U.S. territories, though mountainous regions such as the Pacific Coast range, the Rockies, the Appalachians, Alaska, and Hawaii bear the most severe risk. The U.S. Geological Survey estimates that each year in the United States, landslides cause the deaths of 25 to 50 people and losses of at least $1 billion.[2]

How much do landslides cost the U.S. in terms of monetary losses?

Monetary losses from landslides come from the destruction of infrastructure, homes and businesses; loss of life; disruption of transportation routes; disruption and contamination of water supplies; and the difficulty of both removing and stabilizing landslide material. Even a small landslide that damages a few homes can cost millions of dollars. Losses from landslides in the United States were estimated in 1980 to exceed $1 billion per year. More recently, the U.S.


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