The "true" ocean floor, together covering 60% of the earth's surface (2words) A???S??P????.....Breaking point of rock, which releases seismic energy. ??????E.......Elastic energy which, when stored up in rocks along a fault zone, will deform the rock. ??R?I?.......This type of material causes the speed of all types of earthquake waves to increase. ??N??.......Please help! Thanks in advance!!