SHAKING OR MOVEMENT OF EARTH CAUSED BY THE RELEASE OF ENERGY

POINT ON EARTH'S SURFACE DIRECTLY ABOVE THE FOCUS

THE POINT AT WHICH AN EARTHQUAKE BEGINS

LESS POWERFUL SHOCK FOLLOWING THE PRINCIPLE SHOCK

THE MAXIMUM FORCE THAT AN OBJECT CAN HOLD

PRIMARY AND SECONDARY

waves that move out in all directions from the focus (fastest)

ENERGY WAVES THAT MOVE SIDE TO SIDE.

THE STRENGTH OF AN EARTHQUAKE

A SCALE OF NUMBERS BY WHICH THE MAGNITUDE IS MEASURED

WHICH MEASURES HOW AN EARTHQUAKE FEELS AND THE DAMAGE DONE