C.K.K.K.+2.3

toc =**Section 3 (2-3) Earthquake Hazards and Safety**=

**Vocabulary**
Liquefaction- a damage caused by a earthquake which the moist soil turns to mud After shock- a earthquake that happens after the main earthquake in the same place Tsunamis- a large wave caused by an earthquake base-isolated building- a structure designed to cut down on the amount of energy that hits it during an earthquake

**How Earthquakes Cause Damage**

 * Big earthquakes can cause a great damage.
 * The S waves damage first when you are near a epicenter.
 * Local Soil Conditions
 * When the seismic waves moves from hard rock to loose soil, it shakes more violently than on the rock.
 * Liquefaction
 * When the moist soil shakes, the soil turns in to liquid mud.
 * It can trigger land slides.
 * After shocks
 * The after shock occurs after a main earthquake strikes.
 * It may strike hours, days, or even months later.
 * Tsunamis
 * Tsunamis is a big waves caused by an earthquake.
 * The waves spread from the epicenter.
 * The waves gets bigger when the waves approach to land.

**Making Building Safer**

 * Earthquake deaths are mostly from the falling objects.
 * The strong and flexible buildings withstand the earthquake.
 * The Choice of Location
 * The steep hill may cause the land slides.
 * The filled land can shake violently.
 * The land near the faults shake violently than the other places.
 * The further from the fault, the less shaking there will be.
 * Construction Methods
 * Old building usually can not with stand the earthquake.
 * New buildings are designed to withstand the shock of earthquake.
 * Old buildings can be designed to make them earthquake resistant.

**Protecting Yourself During an Earthquake**

 * For your own safety when you are indoor, you should drop and shield yourself beneath a table or a desk. Also when there are no desk or table available crouch beneath a inner wall.