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What
can I do at home?
Landslides
are a natural process that continuously shapes the landscape,
and it occurs without human involvement; however, it's
important for us to recognize that our decision, such
as where we build our roads and structures, and the ways
in which we alter natural landscapes can affect this process
and sometimes trigger a landslide event.
Although
the physical cause of many landslides cannot be removed,
becoming familiar with the
land around you, purchasing
earthquake insurance, conducting
a detailed site analysis, installing
appropriate structures, and planting
ground cover on slopes can reduce a landslide's effects.
Homeowners can also support
their local government's efforts to design and enforce
stricter buildings codes that would regulate homes away
from landslide prone areas.
Become
familiar with the land around you. Learn whether
debris flows have occurred in your area by contacting
local officials, State geological surveys or departments
of natural resources, and university departments of geology.
Slopes where debris flows have occurred in the past are
likely to experience them in the future..
Watch
the patterns of storm-water drainage on slopes near your
home, and note especially the places where
runoff water converges, increasing flow over soil-covered
slopes. Watch the hillsides around your home for any signs
of land movement, such as small landslides or debris flows
or progressively tilting trees.
Purchase
earthquake insurance. Homeowner's insurance
does NOT cover losses due to landslide.
Conduct
a detailed site analysis. Private consulting
companies may be hired to produce a landslide vulnerability
map for your home, as well as to recommend mitigative
practices.
Install
and maintain structures. Proper engineering,
site selection, installation, and maintenance of structures
(e.g., gabions) to improve drainage conditions and increase
slope stability can assist in mitigating the effects of
a landslide. Remember: If you build walls to divert debris
flow and the flow lands on a neighbor's property, you
may be liable for damages.
Plant
ground cover on slopes. The roots of plants
can help secure dirt to the slope.
Support
your local government in efforts to develop
and enforce land-use and building ordinances that regulate
construction in areas susceptible to landslides and debris
flows. Buildings should be located away from steep slopes,
streams and rivers, intermittent-stream channels, and
the mouths of mountain channels.
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