Minggu, 26 September 2010

Natural Disaster





https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmQxkz4yDHc-YD3ygAZXSBg1xa0g7jO3IB2p8iMzHUGYmAwOz8XSHpUKBCpFT8bl1qtO_RfyvXO6w2GExGcxzxzxzjdG_bmqcsif9bSO6UvikFZyq4ZswsZr8PZbXLz4smy4v958eG5v9g/s320/berita_daerah_tanah-longsor.jpg
       
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 
Simak
Baca secara fonetik
Simak
Baca secara fonetik
http://www.enr.state.nc.us/upclose/images/General_landslide.jpg Types of Landslide  
http://www.geonet.org.nz/images/landslide/landslide_glossary_classification_lge.gif