JLKR+2.3

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Vocabulary

 * liquefaction**: when an earthquake violently shakes, it turns loose, soft soil into mud
 * aftershock**: is an earthquake that happens after a larger earthquake in the same place
 * tsunamis**: large waves formed by underwater earthquakes
 * base-isolated building**: a building made to make the earthquake damage less

How Earthquakes Causes Damage

 * S waves
 * their movements cause severe damage near the epicenter
 * Local soil conditions
 * a house built on solid rock
 * shake less
 * a house built on sandy soil
 * shake more
 * liquefaction
 * can cause landslides
 * aftershocks
 * buildings weakened by a earthquake can collapse during an aftershock
 * could strike anytime after the real earthquake
 * tsunamis
 * underwater earthquakes could trigger tsunamis
 * some tsunamis the height of a six-story building
 * wow, that's huge

Making Buildings Safer

 * buildings that are more flexible won't crack or break as easily
 * stiff buildings will crack and break during an earthquake
 * choice of location
 * steep slopes could be dangerous to landslides
 * filled land will shake a lot
 * avoid building structures near earthquake faults
 * constructing methods
 * brick buildings and wood-frame buildings will probably collapse if walls have not been sturdied
 * base-isolated buildings are safer

Protecting Yourself During an Earthquake

 * drop, cover, hold
 * hide beneath a desk or table to protect yourself from falling objects
 * if outside, go to a opened space area
 * no telephone poles or things that can fall on you