THEY+2.3

toc =2.3 Earthquake Hazards And Safety=

Vocabulary

 * Liquefaction:**when an earthquake mushes soil into a liquid
 * Aftershock:**this is another earthquake that is after another earthquake
 * Tsunami:**this is when an earthquake occurs in the ocean causing large waves
 * Base-Isolated Building:**a bearing that doesn't damage the building but using the power on the bearing

How Earthquakes Cause Damage

 * when earthquakes hit it could cause disasterous damage
 * these tremendous ground forces can tear down and destroy any building house, poles, gas, and water mains
 * Local Soil Conditions**
 * when seismic waves hit hard rock to soft soil it puts a lot of force on the soil
 * the more thick the soil is the more the damage will be
 * Liquefaction**
 * this action happens when soft soil turns into liquidly mud
 * as the earthquake gives room this effect makes buildings sink
 * Aftershocks**
 * this affect strikes after an earthquake is caused
 * aftershocks are like smalller earthquakes, but aftershocks don't come immediately after an earthquake strike, but it could take like days, weeks, or even months for it to happen
 * Tsunamis**
 * these massive tital waves happen when the ocean-floor was hit by an earthquake
 * these waves spread out from the epicenter of the earthquake and go across the water

**Making Buidings Safer**

 * injurie and deaths are cause by earthquakes
 * to lower damage problems new buildings must be more strong and more flexible
 * Choice of Location**
 * the location of the building is very important because depending on the area is how bad the earthquake is
 * land such as filled land can shake dangerously
 * Construction Methods**
 * the way of construcing a build is if it can withstand an earthquake or not
 * they make a design of a base isolated building with springs at the bottom so the damage won't be critical, but the building will go back and forth

**Protecting Yourself During an Earthquake**

 * protecting yourself during an earthquake is very important because you might get hurt by falling objects
 * the best way to protect yourself is to go under a table and hold the legs or go next to a wall and duck and cover[[image:Fixed-Base_Building]]