The difference in seismic velocity above versus below the Moho at a distance from the mid-ocean ridge that has a lower temperature and where most fractures have healed is __________ km/sec.

Question

Quizplus · Accepted Answer

The seismic velocity above and below the Moho is different due to the change in density and composition of the rocks. At a distance from the mid-ocean ridge where temperatures are lower and fractures have healed, the velocity change is usually around 1.4 km/sec. Therefore, the correct choice is C.

The Difference in Seismic Velocity Above Versus Below the Moho