The Cause and Effect of volcanoes, earthquake, and landslides.

•The earth has “plates” and when two plates hit each other, one goes under and becomes “molten” which means it gets so hot, the ground turns into liquid.

•Some effects of volcanoes are: the release of deadly volcanic gases which kill humans through acidic corrosion or by asphyxiation. They may also cause earthquakes, and geysers.

•  The short answer is that earthquakes are caused by faulting, a sudden lateral or vertical movement of rock along a rupture (break) surface.

•The effects of an earthquake could be: shaking and ground rupture, landslides, fires, soil liquefaction, Tsunami, floods, and high mortality rates.

• A landslide is defined as, the movement of a mass of rock, debris, or earth down a slope. (Crude, 1991). Landslides are a type of "mass wasting" which denotes any down slope movement of soil and rock under the direct influence of gravity. The term "landslide" encompasses events such as rock falls, topples, slides, spreads, and flows (Vanes, 1996). Landslides can be initiated by rainfall, earthquakes, volcanic activity, changes in groundwater, disturbance and change of a slope by man-made construction activities, or any combination of these factors. Landslides can also occur underwater, causing tidal waves and damage to coastal areas. These landslides are called submarine landslides.

Landslides

Landslides impeded traffic flow that was diverted onto secondary highways as a result of the collapsed interchange at I-5 and California State Highway 14. Rock falls and rock slides closed many of the alternate routes across the San Gabriel Mountains from the Lancaster/Palmdale and Santa Clarita Valley areas (plate 1) to Los Angeles, and it was several days before some of these routes were cleared of rock debris and made available to commuters.