GLY 1010 Lecture Notes - Lecture 41: Mercalli Intensity Scale, San Andreas Fault, Continental Crust
Document Summary
A measure of the intensity and concentration of the applied force on a given area is stress. Love waves and rayleigh waves are surface earthquake waves. As with the motion of sound waves, these earthquake waves move by alternately pushing (compressing) and pulling (dilating) the rock. More of the most deadly earthquakes (4 of the top 10) in history occurred in this country. Rocks can undergo ductile deformation where they deform permanently without fracturing or losing cohesion. The response of strain in rocks depends on all of these. The modified mercalli intensity scale measures what parameters of an earthquake personal observations of witnesses and the structural damage observed. The primary reason continental drift theory was initially (prior to 1968) rejected was. A failure to explain how continental crust could move though ocean crust. This feature is where the north america plate is sliding laterally past the pacific plate (transform plate boundary)
