Peter M. Shearer is a Professor of Geophysics at the Scripps Institution of Oceanography, University of California, San Diego. He has written over one hundred scientific papers on various aspects of seismology and is currently the President-Elect of the seismology section of the American Geophysical Union. He has taught the introductory seismology class at Scripps for over 15 years; this book is based on material and problem sets that were developed for this class.
The fundamentals of seismic wave propagation are developed usinga physical approach and then applied to show how refraction,reflection, and teleseismic techniques are used to study thestructure and thus the composition and evolution of the earth. Thebook shows how seismic waves are used to study earthquakes and areintegrated with other data to investigate the plate tectonicprocesses that cause earthquakes. Figures, examples, problems, andcomputer exercises teach students about seismology in a creativeand intuitive manner. Necessary mathematical tools including vectorand tensor analysis, matrix algebra, Fourier analysis, statisticsof errors, signal processing, and data inversion are introducedwith many relevant examples. The text also addresses thefundamentals of seismometry and applications of seismology tosocietal issues. Special attention is paid to help studentsvisualize connections between different topics and view seismologyas an integrated science.
An Introduction to Seismology, Earthquakes, and EarthStructure gives an excellent overview for students ofgeophysics and tectonics, and provides a strong foundation forfurther studies in seismology.
The mathematics required in order to understand the text ispurposely kept to a minimum, so the book is suitable for coursestaken in geophysics by all undergraduate students. It will also beof use to postgraduate students who might wish to includegeophysics in their studies and to all professional geologists whowish to discover the breadth of the subject in connection withtheir own work.
The book is divided into two parts: a verbal description (Chapters 1-6) and a collection of 55 plates (Chapter 7) with interpretations. The verbal description explains in a rather elementary form the most fundamental physical phenomena relevant to seismogram appearance. The collection of plates exhibits a large variety of seismogram examples, and the corresponding interpretations cover different seismic sources (tectonic and volcanic earthquakes, underground explosions, cavity collapse, sonic booms), wave types, epicentral distances, focal depths and recording instruments (analog, digital, short- and long-period, broad band).
The book compliments older manuals in that both analog and digital records are considered. Seismograms from more traditional narrow-band as well as from modern, broad-band instruments are displayed. Tectonic and volcanic earthquakes are represented, and the exhibited seismograms form a worldwide collection of records acquired from seismographic stations located in North and Central America, Asia, Europe and New Zealand, i.e. in various geological and tectonic environments. Terminology and usage of definition does vary among agencies in different parts of the world; that used in this book is common to Europe.