PPT-Today’s lecture: Seismology: the study of earthquakes

Seismic waves terminology classification the transfer of energy how waves move Measuring earthquakes Layers of the Earth and seismic waves What information a seismologist is able to interpret from a seismogram. 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 EARTHQUAKE MAGNITUDES. Earthquake source characterization. Magnitude. Fault dimensions (covered before). Slip distribution (kinematics). Fourier transform refresher. Point source representation. Spectral shape. ● 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?. Seismometry Seismometer –examplesSeismometer –examples ugx x0 xr Seismology and the Earth’s Deep Interior Seismometry Seismometer –examplesSeismometer –examples ugx x0 xr Seis – Impacts of the Christchurch Earthquakes on Inner City . Revitalisation. John McDonagh, Jacky Bowring, Lincoln University, . Harvey Perkins, University of Auckland, New Zealand. . Background. Christchurch CBD retail struggling since 1970’s. (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 Seismology: the study of earthquakes. Seismic waves: terminology, classification, the transfer of energy, how waves move. Measuring earthquakes. Layers of the Earth and seismic waves. What information a seismologist is able to interpret from a seismogram. Why you need to prepare for the next earthquake . Alaska has more earthquakes than any other region of the U.S. . And in fact is one of the most seismically active area of the world.. Great earthquakes (Earthquakes larger than magnitude 8) rock the state on average every 13 years since the 1900. . LOCATING EARTHQUAKES. The release of the accumulated elastic strain energy by the sudden rupture of the fault is the cause of the earthquake shaking. Ground Motion Deconvolution. (Steidl). Earthquakes are not located randomly around the Earth. Lecture 3 End of lecture 2 + Displaying quantitative variables First Class Second Class Third Class Crew Total Alive 203 118 178 212 711 Dead 122 167 528 673 1490 Total 325 285 706 885 2201 First Class Creation. Flood. Crucifixion. Los Angeles sinking. Sixth seal. 58-0927 - Why Are We Not A Denomination?. When He got it all made, it was just a great big volcanic eruption. . He let them old . volcanics. Structure of the Earth. Key terms . Earth’s Structure- How the Earth is made up beyond what we see. . Plate Tectonics- Understanding how the Earth’s surface is divided up into sections. . Inner Core- The central part of the Earth; made of solid iron. .