Earthquakes Flashcards
1
Q
What are the four layers of the earth
A
Inner core, outer core, mantle, crust
2
Q
How is the mantle split
A
Upper and lower
3
Q
How is the upper mantle split
A
Lithosphere and astgenosphere
4
Q
What are body waves
A
Waves that move beneath the surface
5
Q
Frequency
A
Number of peake in a wave
6
Q
Amplitude
A
Height of peaks in a wave
7
Q
Types of b waves
A
Primary and Secondary waves
8
Q
P waves
A
Compression Moves in the same direction as the wave Fastest wave Like an accordion Travels through solids and liquids Slower in liquids Faster in solids
9
Q
S waves
A
Perpendicular to the direction of the wave Arrive after p waves Slower than p waves Side to side wave s Can only travel through solids
10
Q
Surface waves
A
Waves that reach the s ur face of the earth
11
Q
Types of surface waves
A
Love and Raleigh waves
12
Q
L waves
A
Surface motion that is side to side or back and forth
13
Q
Raleigh waves
A
Waves that move up and down…only on string earthquajes
14
Q
Earthquake
A
A large and sudden release of energy
Occurs 90 in the crust
15
Q
Magnitude
A
The strength of an earthquake
