Landslides
Landslides are the movement of
soil or rocks in large numbers suddenly or gradually. Landslides generally
occur in steep areas that are not stable.
Indication that
arise before the landslide was the appearance of cracks on the slope, emerge
springs suddenly, the water wells in around of the slope becomes muddy, brittle
rock, and gravel began to fall.
Landslide occur
when the driving force on slopes greater than anchoring. Rainwater is the main
cause landslides. At the beginning of the rainy season, usually a high
intensity of rain, so that the water content in the soil becomes surfeited in a
short time.
Another factor affecting the occurrence of this disaster is the
occurrence of erosion, barren slopes, additional expenses such as building and
vehicle load, and the condition of the fragile soil and rocks. While also
vibrations caused by earthquakes, eruption, machine vibration, and vibration of
vehicle. Human activities can cause landslide, such as uncontrolled mining.
Landslides can be
prevented by planting strong rooted vegetation on the barren slopes, making the
channel rain water, making the terraces when building the residence, building
residence away from disturbed areas, and many more.
Landslide Map

