1. LANDSLIDE BURIES VILLAGE IN CHINA JANUARY 11, 2013
More lectures at Disasters Supercourse - 
Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA 

2. A landslide swept through
A landslide swept through. Zhaojiagou village in the steep, snow-dusted mountains of southern China on Friday (Jan. 11), killing at least 32 people.

3. SEARCH AND RESCUE TEAM

4. The area is prone to landslides triggered by earthquakes and heavy rains.

5. BACKGROUND

6. LANDSLIDES represent permanent deformation caused by the downward and outward movements of large volumes of soil and/or rock down- slope under the influence of the force of gravity.

7. LOCATIONS WITH STEEP UNSTABLE SLOPES (E. G
LOCATIONS WITH STEEP UNSTABLE SLOPES (E.G., IN MOUNTAINOUS AREAS) TEND TO HAVE THE MOST FREQUENT AND DEADLY LANDSLIDES

8. PHYSICS OF LANDSLIDES
Landslides occur naturally.
Landslides can be triggered and/or exacerbated by: 1) Water (from precipitation during a tropical storm, hurricane, or typhoon), or 2) Vibrations (from ground shaking during an earthquake.

9. PHYSICS OF LANDSLIDES
These phenomena either reduce the friction or increase the down-slope force.

10. SITING AND BUILDING ON UNSTABLE SLOPES
CAUSES OF DAMAGE
SITING AND BUILDING ON UNSTABLE SLOPES
SOIL AND ROCK SUCEPTIBLE TO FALLS
SOIL AND ROCK SUCEPTIBLE TO TOPPLES
LANDSLIDES
SOIL AND ROCK SUCEPTIBLE TO SPREADS
SOIL AND ROCK SUSCEPTIBLE TO FLOWS
CASE HISTORIES
PRECIPITATION THAT TRIGGERS SLOPE FAILURE SHAKING
GROUND SHAKING THAT TRIGGERS SLOPE FAILURE

11. ELEMENTS OF LANDSLIDE RISK
HAZARDS
EXPOSURE
RISK
VULNERABILITY
LOCATION