Epicentre, Hypocentre and Seismic Waves Flashcards
1
Q
what is the hypocentre (focus) of an earthquake?
A
origin of earthquake at the point where the rock moves
2
Q
what are seismic waves?
A
ripples of energy that start at focus and cause ground movement
3
Q
what is the epicenter
A
directly above the hypocentre on the surface.
-the area where the earthquake is strongest
4
Q
Ocean Fracture Zone (OFZ)
A
a belt of activity through the oceans along mid-ocean ridges.
5
Q
Continental Fracture Zone (CFZ)
A
a belt of activity following the mountain ranges
ie-Spain through the alps to Middle East to Himalayas to East Indies and then around Pacific.
6
Q
Largest earthquake recorded?
A
Chile May 22 1960
9.5
