GEOL 1001 Chapter : Chapter 8 Geology Final Exam Review
Document Summary
Xii(highest: moment scale- considers different waves, area of faults, and amount of slip, liquefaction- waves liquefy h2o filled sediments. ***quakes occur when rocks break and new faults form. ***quakes occur when a preexisting fault suddenly slips again. ***compressional(primary) waves- push and pull motion, vibrations are parallel to the direction of wave. ***shear(secondary) waves- shaking motion, vibration direction is perpendicular to wave direction. ***love and rayleigh waves are the lowest and most destructive waves. ***when trying to pinpoint an epicenter, data from 3 stations pinpoint the epicenter and the point of intersection is the actual epicenter. ***earth quake size is described by intensity or magnitude. ***shallow earthquakes occur at divergent and transform boundaries. ***intermediate and deep earthquakes occur at convergent boundaries; stress by shear between plate and mantle. ***primary waves are first to arrive; they produce rapid up and down motion. ***secondary waves are second to arrive; they produce back and forth motion; usually stronger than primary waves.
