Seismic Strong Motion Synthetics

Seismic Strong Motion Synthetics

1st Edition - April 28, 1987

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  • Editor: Bruce Bolt
  • eBook ISBN: 9780323155472

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Description

Seismic Strong Motion Synthetics describes the methods of modeling the production of strong seismic ground motions by realistic seismic sources. Organized into six chapters, this book highlights the different ways of numerical treatment and the available computationally rapid and conceptually simple algorithms. The introductory chapter describes the intense bursts of radiation emitted during sudden changes in the rupture-front velocity occurring when the zone of slip reaches regions of differing stress drop. This topic is followed by an overview of the observations of seismic waves close to the fault and a discussion on the application of kinematic dislocation models to the synthesis of strong ground motion, such as the representation theorem and methods of theoretical and semi-empirical synthesis. A chapter deals with dynamic shear cracks with an emphasis on numerical modeling of complete three-dimensional, spontaneous rupture processes not only in an infinite, homogeneous medium but also in a homogeneous half-space or horizontally layered medium. This book also describes a tool capable of synthesizing strong motion records from a basic understanding of fault mechanics and seismic-wave propagation in the earth. The text further examines the calculation of ground motions at locations near to large earthquakes. The concluding chapter explores the methods of computing the motions that result from elastic waves propagating through complex structures. This book is an advanced text on numerical modeling for use in graduate and upper-division courses in physics, geophysics, and earthquake engineering.

Table of Contents


  • Preface

    Chapter 1 Asymptotic Modeling of Strong Ground Motion Excited by Subsurface Sliding Events

    I. Introduction

    II. Dynamic Fracture Mechanics

    III. Canonical Problems

    IV. Near-Field Ground Motions

    V. Far-Field Ground Motions

    VI. Summary

    Appendix A. The Rayleigh-Wave Components of the Green's Tensor

    Appendix B. Evaluation of the Representation Integral

    References

    Chapter 2 Array Analysis and Synthesis Mapping of Strong Seismic Motion

    I. Prediction of Strong Ground Motion

    II. Signal Estimation and Detection

    III. Wave Coherence

    IV. Synthesis Mapping

    V. Computational Results

    References

    Chapter 3 Numerical Modeling of Realistic Fault Rupture Processes

    I. Introduction

    II. Synthesis from Kinematic Dislocation Models

    III. Three-Dimensional Modeling of Spontaneous Fault Rupture Processes

    IV. Summary

    References

    Chapter 4 Complete Strong Motion Synthetics

    I. Introduction

    II. Automatic Computation of Eigenvalues and Eigenfunctions

    III. Examples of Computation of Synthetic Signals

    IV. Comparison with Real Data

    V. Conclusions

    References

    Chapter 5 Techniques for Earthquake Ground-Motion Calculation with Applications to Source Parameterization to Finite Faults

    I. Introduction

    II. The Fault Surface Integral

    III. Examples of Finite Fault Calculations

    References

    Chapter 6 Path Effects in Strong Motion Seismology

    I. Introduction

    II. Explosion Sources

    III. Earthquake Sources

    IV. Earthquake Applications

    V. Summary

    References

    Index


Product details

  • No. of pages: 336
  • Language: English
  • Copyright: © Academic Press 1987
  • Published: April 28, 1987
  • Imprint: Academic Press
  • eBook ISBN: 9780323155472

About the Editor

Bruce Bolt

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