PPT-SEISMOLOGY

All shook up Earthquakes can be frightening events Click on left image for short video Earthquakes Usually happen near faults What are faults Many faults are near plate boundaries but they can be anywhere and everywhere. 1 Major and Trace Element GeochemistryMajor elements EX40003 Earthquake Seismology 3 1 0 4 EX43005 Seismic Methods of Prospecting 3 1 0 4 Seismic Methods of Prospecting Lab 0 0 3 2 EX43007 Stationary Field and Electrical Methods 3 0 0 3 EX40004 Ti Science Trivia. . #3. Science Trivia. 1. What . do we call the study of solar system and the objects in it? A. Astrology, B. Astronomy, C. Meteorology. 2. . Which scientist would study rocks and minerals. Chapter 4. Faults. : Red. . Earthquake. :. an event of ground shaking usually caused by the rupturing of a fault within the Earth.. Who studies Earthquakes?. Seismologists. waves. Geophysicists. Chapter :: 6. Snell’s Revenge!. Snell’s Law & Critical Refraction. Because seismic sources radiate waves in all directions. Some ray must hit interface at exactly the critical angle, . i. c. This critically oriented ray will then travel along the interface between the two layers. With Seismology. Fabian Walter. 2009 – Dr. sc. ETH Zürich. 2004 – MSc University of Colorado, USA. 2002 – BSc Brigham Young University, USA. Host: Laboratory of Hydraulics, Hydrology and Glaciology . and . the contribution of array seismology. J.-P. . Ampuero. Caltech . Seismolab. Acknowledgements. : . Lingsen. . Meng. (now at UC Berkeley). Overview. Earthquake physics: how earthquakes start, propagate and stop? + broader impact. ● What is Seismology?. ● What are Seismic Waves?: Types of Seismic waves. ● Where do Earthquakes Happen?. ● Why do Earthquakes Happen?. ● How is the Epicenter of an Earthquake Located?. ● How are Earthquakes Magnitude Measured?. Seismogram Interpretation Wavefieldsin the Earth: SH wavesWavefieldsin the Earth: SH waves Wavefieldfor Seismology and the Earth’s Deep Interior Seismogram Interpretation Wavefieldsin the Earth: Seismometry Seismometer –examplesSeismometer –examples ugx x0 xr Seismology and the Earth’s Deep Interior Seismometry Seismometer –examplesSeismometer –examples ugx x0 xr Seis ing Seismology Lecture 5 Dr. P. Anbazhagan 1 of 2 7 Lecture 5 : Concept of Seismic magnitude and Intensity , earthquake size, different magnitude scales and relations. Topics Introduction Intensit P. F. Chen. ，. China. Moreton wave. P. F. Chen . @ISSI-Beijing. Moreton et al. (1961). Moreton. . waves are associated with big flares . Propagation velocity: ~1. 000 km/s . Propagation distance: . GROUND MOTIONS FROM SIMULATIONS. 1. Observed data adequate for regression except. close to large ‘quakes . Observed data not adequate for regression, . use simulated data . 2. Ground-Motions for Regions Lacking Data from Earthquakes in Magnitude-Distance Region of Engineering Interest. . Nov 11, 2009. Seismic Instrumentation Technology Symposium. B. John Merchant. Technical Staff. Sandia National Laboratories. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company,.