More about currents Flashcards
1
Q
What causes the movement of molten rocks in the asthenosphere?
A
Heat and pressure
2
Q
The movement of molten rocks is called…
A
Convection current
3
Q
The movement of molten rocks makes faults or cracks in the crust and cause…
A
seismic waves and they are waves that travel through the Earth’s layer and give out low frequency energy
4
Q
How are seismic waves recorded?
A
Using a seismograph
5
Q
When rocks break in a fault or crack in the crust, it causes…
A
An earthquake
6
Q
The point of origin underground is called…
A
The focus
7
Q
The point directly on top of the focus on the Earth’s surface is called…
A
The epicenter (of an Earthquake)
8
Q
Where is an Earthquake felt the strongest?
A
The epicenter
