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.