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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 |