01:460:100 Study Guide - Midterm Guide: Richter Magnitude Scale, Fault Breccia, Fault Scarp

• School: Rutgers University
• Department: Geological Sciences
• Course: 01:460:100
• Professor: Monteverde

Document Summary

O p-wave (compressional waves): fastest waves, materials moves back and forth in direction of wave. Pushing and pulling a spring: s-wave (shear waves): moves 60% of p-waves. Materials move in up and down wave direction. Surface waves: travel along surface, slower, cause more structural damage. Like a sine wave but flat along the surface: rayleigh (r) waves: resembles ocean waves. Circular motion and moves: love (l) waves: resembles a sideways s-wave. Hypocenter = where it happens in the ground. Epicenter = where it happens on the surface. Seismogram record vertical and horizontal ground motion. The three can be used to triangulate the location. Using the richter magnitude scale, you measure the amplitude of the highest s-wave and the distance. The intersection of these two will give you magnitude. The distance can be figured out by measuring the distance between the first p-wave and the first s-wave. X amount of time equals x amount of distance.