Chapter 3 Earthquakes Flashcards
1
Q
How is an earthquake formed
A
It’s formed when two plates collide slide past or separate. Pressure builds up and rock is broken. An earthquake results from this
2
Q
What is used to measure the force of the earthquake?
A
Richter scale
3
Q
What is used to measure the vibrations of a earthquake?
A
Seismograph
4
Q
Earthquakes in Japan the impact of tsunamis:
A
Pacific ring of fire 10km inland
2011 25,000 people died
9.0 Richter scale Nuclear power cooling system failed
Epicentre 70km off the coast Aftershocks
Raised seabed 8m
Waves 40m high
1,000 seismograph warnings
5
Q
What is an earthquake
A
A series of seismic waves that shake the ground and buildings
