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Chapter 3
Earthquakes
| Question | Answer |
|---|---|
| what is someone who studies Earthquakes called | seismologist |
| what is an earthquake | shaking of the earth |
| the place where an earthquake begins beneath the earths surface | Focus |
| these spread out in circles from the focus | shock waves/ seismic waves |
| the point at the earths surface that is directly above the focus of the earthquake | epicentre |
| A large crack in the earth's crust | Fault |
| How does a tsunami form | when an earthquake underground occurs |
| what are earthquakes caused by | the movement of the earths crust |
| where is the earthquake the strongest | at the epicentre |
| what is a tsunami | a huge wave |
| what instrument do you use to record how long an earthquake lasted | Seismograph |
| what instrument do you use to measure the strength/magnitude of an earthquake | Richter scale |
| what does the scale go up to | 1-9.5 |
| Why does the scale only go up to a 9.5 | That is the largest earthquake ever recorded |
| REMEMBER A SEISMOGRAPH IS AN INSTRUMENT, A RICHTER SCALE AND MOMENT MAGNITUDE SCALE ARE NOT | REMEMBER |
| when did the Nepal earthquake take place | 25 April 2015 |
| what was the magnitude | 7.8 |
| can earthquake impacts be good or just bad | Just bad |
| tell me two social impacts | 1. Almost 9000 people died ( or just people died if u dont remember exact number.) 2. 90% of schools were left unusable. |
| tell me two economic impacts | 1. damage cost was 9 million 2. 3.7 million people needed emergency aid |
| when did the Chile Earthquake take place | 10 February 2010 |
| what was the magnitude | 8.8 |
| tell me two social impacts | 1. more than 500 people died 2. many roads were blocked by debris |
| tell me two economic impacts | 1. the damage cost was 30 billion 2. the tourism industry took a hard hit as many hotels received cancellations |