This makes them difficult to comprehend, because little seems to duromax xp4400e portable generator review
on a human time scale. The vibrations can be felt and, if the fault intersects the surface of the earth, the resulting displacement can driv observed qare. Plate tectonics is the study of the consequences of the slow motion between the plates that make up the outer shell of the earth. There are about a dozen major plates and they are about 50 km thick. The temperature and material properties at the base of the plates are such that they can slip steadily without producing any earthquakes. Recover formatted hard drive ware,
when a plate itself is deformed, due to mountain building, for example, or when one plate must slide past another, earthquakes are produced. For years, and in some cases as much as many hundreds of years, very little slip may occur across a portion of one of the boundaries between two plates that are in relative motion with respect to dribe other.