|Costly Regional Landslide Events in the United States
What this map layer shows:
Fifteen landslides in the United States and Puerto Rico, with the number of deaths associated with these events ranges from none to 150 and the associated costs range from $10 million to $800 million.
Landslides are the downward and outward movement of
earth materials on a slope. This movement generally involves the falling,
sliding, or flowing of rock and (or) soil or a combination of these
and other less common types of movement. Causes include earthquakes,
reservoir drawdowns, heavy precipitation, and floods. Costly regional
landslide events are those where there was loss of human life or damage
to public or private property. The limits shown in this map layer
indicate the extent of extensive landsliding triggered by a single
meteorological or seismic event. The extent boundaries were drawn
from the published literature and should be considered approximate.
In several cases, the limits shown represent an arbitrary administrative
boundary, such as a county boundary, rather than the extent of landsliding
related to a storm or an earthquake. This map layer was compiled by
Geological Survey National Landslide Hazards Program (NLHP). The
NLHP gathers information, conducts research, responds to emergencies
and disasters, and produces scientific reports and other products
for a variety of users. The primary objective of the NLHP is to reduce
long-term losses from landslides by improving our understanding of
the causes of ground failure and suggesting ways to lessen damages
and loss of life.
The Costly Regional Landslide Events in the United States data set
shows 15 landslide events in the United States and Puerto Rico. The
number of deaths associated with these events ranges from none to
150, and the associated costs range from $10 million to $800 million.
Descriptive information includes the type of landslide, the process
that triggered the landslide, location, date, number of deaths, and
damages in millions of dollars. Further information on landslides
is available from the USGS
Landslide Hazards page, and from the National
Atlas Landslides page.