SNELL'S LAW
DESCRIBES THE BENDING AS SEISMIC WAVES TRAVEL FROM MATERIAL OF ONE SPEED TO ANOTHER
THE ANGLES OF THE
INCIDENT (inc), REFLECTED (rfl), AND TRANSMITTED (REFRACTED) (tm) ARE
GOING INTO SLOWER MATERIAL- RAY BENDS TOWARD VERTICAL
GOING INTO FASTER MATERIAL- RAY BENDS TOWARD HORIZONTAL