Measurement of Earthquakes Flashcards
1
Q
The power of an earthquake is measured using what?
A
A seismometer.
2
Q
What does a seismometer do?
A
It detects the vibrations caused by an earthquake.
It plots the vibrations on a seismograph.
3
Q
The strength or magnitude of an earthquake can be measured using what?
A
The richter sclale.
Numbered 0-10.
4
Q
Describe earthquakes which are a scale of 1 or 2 on the scale.
A
They are very common and can happen everyday in places San Francisco.
They are so small people can’t feel them they can only be picked up by a seismometer.
5
Q
Describe earthquakes which are a scale of 7 or 8 on the scale.
A
They can be devastating.
6
Q
Give an example of an earthquake which measured 7.8 on the richter scale?
A
China’s south-western Sichuan province in may 2008.
