earthquakes Flashcards
1
Q
vibration of earth, rapid release of energy
A
earthquake
2
Q
cause of earthquakes
A
fault movement
3
Q
the point where an earthquake originates under the surface
A
hypocentre
4
Q
point directly above the hypocentre
A
epicentre
5
Q
instrument that records earthquake waves
A
seismograph
6
Q
traces of amplified, electronically recorded ground waves
A
seismogram
7
Q
measures the magnitude and intensity of an earthquake from 1-10
A
richter scale
8
Q
travels through the interior of the earth at amazing speeds
A
body waves
9
Q
travels on the surface
A
surface waves
10
Q
transverse waves, comes after
stronger and more dangerous
A
s-waves (secondary waves)
11
Q
the first waves
A
primary waves
