PPT-The Richter Scale: Obsolete?

Misconception 2 Geology 101 Fall 2012 Richter scale Charles F Richter at Caltech developed the Richter scale to describe earthquake strength in 1934 The deflection maximum movement of the pen on the seismograph was used to determine magnitude. Watch the live update link and describe what it is that you are . seeing. Based upon what you have studied so far can you see any links?. http://www.iris.edu/seismon. /. Key words. Focus= . the point within the earth where the seismic waves of an earthquake start. Mount St. Helens. First recorded Earthquake? 1170 BC; 580 BC. Canadian Earthquakes: 1663, 1941, 8.1 on the Richter Scale, Near Queen Charlotte Islands, BC. Homework?. Devastating forces of nature.. In a matter of moments, a peaceful countryside can be transformed into a violent, twisted landscape.. Seismograph. Or seismometer, is an instrument used to detect and record earthquakes.. Seismogram. A record written by a seismograph in response to ground motions produced by an earthquake, explosion, or other ground-motion sources.. . Microwave. Dirac . Billiards. : . From. . Graphene. . to. . Fullerene. Supported. . by. DFG . within. SFB . 634. B. Dietz, T. Klaus, . M. . . Miski-Oglu. , N. . Pietralla. , . A. . Richter, . : December 1811, January 1812, February 1812 . Eastern U.S. earthquakes less frequent, but more widely felt. Crust is older and transmits stress. Intraplate Earthquakes. Earthquake Size and Characteristics. 19.3 . –. Measuring and Locating Earthquakes. Magnitude. Magnitude = a measure of energy produced by earthquake. Amplitude = Height of wave. Richter Scale = . numerical rating system used to measure the magnitude of an earthquake. 19.3 . –. Measuring and Locating Earthquakes. Magnitude. Magnitude = a measure of energy produced by earthquake. Amplitude = Height of wave. Richter Scale = . numerical rating system used to measure the magnitude of an earthquake. 19.3 notes out and have them ready.. We’re going to investigate possible . Mercalli. Intensity values for different pictures. We’ll then map out an epicenter using . Mercalli. Intensity values.. RESTLESS EARTH. Structure of the Earth. The Earth is made up of 3 main layers:. Core. Mantle. Crust. Inner core. Outer core. Mantle. Crust. World Plates. What are earthquakes and where do they occur?. Logarithms. Logarithms with base 10 are common logs. You do not need to write the 10 it is understood. Button on calculator for common logs. LOG. Examples: Use calculator to evaluate each log to four decimal places. Content Purpose:. Explore the scientific theory of plate tectonics by describing how the movement of Earth's crustal plates causes both slow and rapid changes in Earth's surface, including volcanic eruptions, earthquakes, and mountain building. . An earthquake is a motion of the ground surface.. According to A.N. . Strahler. and A.H. . Strahler. ,(1976), ‘An earthquake is a vibration or oscillation of the surface of the earth caused by a transient disturbance of the elastic or gravitational equilibrium of the rocks at or beneath the earth the surface’.. The Richter Scale. VS.. The . Mercalli. Scale. I. When an Earthquake Occurs:. Scientists monitoring earthquake activity receive the . p-wave. and the . s-wave. recordings on their . seismographs.. During: Fault notes. After: Exit slip 4 questions. Day 1: Faults. Fault-. a breaks . in the earth’s surface along which rocks can . move.. Three . kinds of faults – determined by how the rocks move against each .