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**ISBN:**
9789392299346

**Bind:**
Hardback

**Year: **
2022

**Pages:**
88

**Size:**
6 x 9 Inch

**Publisher:**
Cambridge International Science Publishing

**Published in India by:**
Viva Books

**Exclusive Distributors:**
Viva Books

**Sales Territory:**
India, Nepal, Pakistan, Bangladesh, Sri Lanka

**Description:**

This booklet is an introduction to the basic concepts of the physics of earthquakes. It may be viewed as a short summary of the author’s larger book *Theory of Earthquakes*, also published by Cambridge International Science Publishing (978-1-91 0889-52-7). The booklet introduces the tensorial force of the seismic moment, the notion of elementary earthquakes and presents the static deformations, the primary seismic waves and the seismic main shock produced by the tonsorial force in an isotropic elastic half-space. The mechanism of the earthquakes’ focus and vibrations of the spherical Earth and the half-space are also described, as well as earthquakes produced by meteorites or related to seas and oceans. The seismic effects of the explosions are included, as well as elements of structural engineering. The presentation makes the use of the theory of elasticity, the physics of fluids and the equations of mathematical physics.

The author is a scientific researcher in the Institute for Earth’s Physics at Magurele-Bucharest, Romania, with publications in scientific journals on the theory of elasticity, the focal mechanism of earthquakes and the statistical analysis of seismic events.

**Target Audience:**

This textbook is a useful guide for those who want to understand the basic concepts of the physics of earthquakes.

**Contents:**

**Chapter 1. Foreword**

**Chapter 2. Introduction**

**Chapter 3. Seismic Waves ** • Primary waves • Calibration of the potentials • An antisymmetric moment tensor • Isotropic source • Structure factor • General solution for elastic waves. Regularization

**Chapter 4. Seismic Main Shock ** • Interaction with the surface • Secondary waves • Internal discontinuity

**Chapter 5. Static Deformations of the Half-Space** • Kelvin problem • General solution for the half-space • Tensorial force • Force on the surface • Other static problems

**Chapter 6. Focal Mechanism** • Energy balance • The three seismic moments

**Chapter 7. Inhomogeneities** • Stokes problem • Boundary forces • Inhomogeneity • Surface seismic radiation

**Chapter 8. Meteorites, Explosions and Seismic Radiation** • Meteorites • Explosions • Seismic radiation • Explosions in seas and oceans. Tsunami • Earthquakes below seas and oceans

**Chapter 9. Vibrations of the Elastic Half-Space** • Introduction • General solution • General time dependence. Eigenmodes • A gradient force. Harmonic oscillations • A gradient force. -δpulse time dependence • Force on the surface • Static limit • Vibrations of an elastic slab

**Chapter 10. Site Amplification Factors** • Embedded bar • Oscillating shock • Buried bar. Site amplification factors • Coupled harmonic oscillators • Coupled bars

About the Author:

**Bogaan Felix Apostol** is a scientific researcher in the Institute for Earth’s Physics at Magurele-Bucharest, Romania, with publications in scientific journals on the theory of elasticity, the focal mechanism of earthquakes and the statistical analysis of seismic events.

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