LPKW+2.3

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=2.3 Earthquake Hazards and Safety=

Vocabulary

 * Liquefaction-** soil turning into liquid mud because of the violent shaking of the earthquake
 * Aftershock-** an small earthquake that happens after a larger earthquake
 * Tsunami**- a huge wave caused by an underwater earthquake
 * Base-isolated building-** a building designed to reduce the amount of energy during an earthquake

How Earthquakes Cause Damage

 * can topple buildings,create fires,landslides,ect


 * Local Soil Conditions**


 * loose soil shakes more than rock when seismic waves reach them
 * house built on rock will shake less than house built on loose soil


 * Liquefaction**


 * when quake suddenly shakes loose soil, it turns into mud
 * can cause landslides


 * Aftershocks**


 * occurs hours,days,or months after an earthquake


 * Tsunamis**


 * when quake happens underwater it pushes water,making waves
 * waves grow larger as they reach the shore

Making Buildings Safer

 * buildings should be flexible
 * old buildings should have base-isolated bearings

Protecting Yourself During An Earthquake

 * drop,cover,and hold
 * go under a table or desk