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1 Glossary Active faul t A fault that has moved in historic eg past 10000 years or recent geological past eg past 500000 years Aftershock An earthquake that follows a large magnitude e. P Anbazhagan of Lecture Concept of Seismic magnitude and Intensity earthquake size different magnitude scales and relations Topics Introduction Intensity Comparison of different intensity scales Problems associated with Non instrumental measuremen 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 Nuclear-Test-Ban Treaty Monitoring . Steven J. Gibbons. Workshop on Arrays in Global Seismology,. Raleigh, North Carolina, May 15-16 2013. .. Rethinking Array Seismology in Nuclear-Test-Ban Treaty Monitoring . 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 . ● 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 (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.. . By: Valentina, Laurel, Miriam, Crystal, Isaiah, Adam, Landon, and Emma.. What Does a Seismologist . S. tudy?. A seismologist studies earthquakes, faults, and seismology. Seismologist also use a Richter Scale to measure earthquakes. . 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 http://bats.earth.sinica.edu.tw. . Institute of Earth Sciences. Academia . Sinica. Yifan. Yin*, Wen-Tzong Liang,. Chun-Chi Liu and Bor-Shouh Huang. History of BATS. Our missions:. To better monitor the earthquake activity in the Taiwan region. CMP gather. 3D seismic reflection. The goal is a 3D image of structure. (data cube). Visualization. (slice & dice). 3-D image. Volume construction of salt dome image. Typical Geometry for 3D Acquisition . 15 Feb 2017. © A.R. Lowry . 2017. Read for . Wed 17 . Feb: . S&W. 62-75 (§2.5). Last time:. . Seismology as Investigative Tool. Deep-Earth . investigations use earthquakes as sources,. three-component broadband seismometers as receivers,.