1.2 Earthquakes Flashcards
1
Q
How do you explain earthquakes?
A
Vibrations of the earth’s surface
2
Q
How many earthquakes per day?
A
8,000
3
Q
To what can you compare earthquakes that suddenly occur?
A
A heavy piece of furniture that suddenly moves and gives a way in 1 go
4
Q
What is an epicentre?
A
The place where the ocean floor has been trapped: it’s the strongest there
5
Q
Earthquakes can last from…
A
Less than one second to many minutes
6
Q
How do you measure an earthquake?
A
Richter scale (1-12)
7
Q
How does the Richter scale work?
A
Every point higher is a 10 times stronger quake
8
Q
Not only an the earthquake itself is dangerous but also the
A
Aftershocks and collapsing buildings
9
Q
What is an LEDC?
A
Less Economically Developed Country
