GEOL105 Lecture Notes - Lecture 6: Hypocenter, Scientific Notation, Kinetic Energy
22 Feb 2017
School
Department
Course
Professor
Document Summary
Sides move vertically and away from each other. Crustal blocks slide past each other horizontally ( along strike ) If the fault is under stress, the blocks should move. But blocks are locked in place along the fault. Crust deforms (strain) around the locked fault storing energy: strain is storing potential energy, at some point, strain is going to overcome the locking force. The crust will move along the fault. Deformed crust snaps back into original shape. Energy travels in body and surface waves: body waves: travels through the earth (almost a straight line) Crust alternately compressed and stretch in direction of travel. Shear wave (slower wave in comparison to p-wave) Wave shears crust perpendicular to direction of travel. Tend to be higher with more motion (back and forth: surface waves: travels just on the surface (fall at the curve of the earth) decreases with depth.
