front 1 What is an earthquake? | back 1 Earthquakes are the shaking, rolling or sudden shock of the earth’s surface. |
front 2 Focus | back 2 The point deep in the earth's crust where the earthquake begins. |
front 3 Epicentre | back 3 The epicentre is the place on the earths surface where the effects of the earthquake is most felt. It is directly above the focus. Most damage is done here |
front 4 Where do earthquakes happen? | back 4 Earthquakes happen most often in places where plates collide |
front 5 How do earthquakes happen? | back 5 When plates collide they build up pressure beneath the earth’s crust. When this pressure is released it causes a violent shaking of the earth’s crust. |
front 6 What happens when an earthquake happens? | back 6 .When an Earthquake occurs shock waves move out from the focus and the epicentre. |
front 7 Where is most damage done? | back 7 These shock waves are strongest at the epicentre. The most damage occurs to built up areas closest to the epicentre. |
front 8 What is the name of the instrument used to measure earthquakes? | back 8 A Seismograph |
front 9 What is the name of the scale that the earthquake is show on? | back 9 Richter Scale |
front 10 Damage Done by earthquake | back 10 Roads and bridges damaged or destroyed Houses damaged or destroyed Fires, gas explosions. Injury and loss of life. |
front 11 Type of aid needed. | back 11 Emergency aid in the form of medicine, shelter, clean water ,food.. |
front 12 What can be done to help reduce the damage done? 3 things | back 12 1. Have a good warning system place to alert people in advance. |
front 13 2 | back 13 2. Build brick not wooden houses as these are stronger. |
front 14 3 | back 14 3. Build earthquake proof building, these buildings are built on rollers that move with the earthquake. |