Rock Anisotropy, Fracture and Earthquake Assessment

Yonggang Li, University of Southern California, Los Angeles, USA

Table of content:

Chapter 1 Seismic Wave Propagation in Anisotropic Rocks with Applications to Defining Fractures in Earth Crust
1.1 Introduction
1.2 Elastic Anisotropy of Crustal Rocks
1.3 Plane Wave Propagation in Homogeneous Anisotropic Medium
1.4 Reflection and Refraction of Plane Waves at a Planar Boundary between Anisotropic Media
1.5 Ray Tracing in Anisotropic Heterogeneous Media
1.6 Ray Series Modeling of Seismic Wave Propagation in 3-D Heterogamous Anisotropic Media
1.7 Observation and Modeling of Fault-Zone Fracture Seismic Anisotropy
1.8 Shear Wave Splitting Observations and Implications on Stress Regimes in the Los Angeles Basin, California
Acknowledgement
References

Chapter 2 Reproducing the Realistic Compressive-tensile Strength Ratio of Rocks using Discrete Element Model
2.1 Introduction
2.2 A Brief Introduction to the ESyS-Particle
2.3 The New Criterion for Bond Breakage
2.4 Calibration procedures
2.5 Parametric Studies
2.6 Discussions and Conclusions
Acknowledgement
References

Chapter 3 Rock Fracture under Static and Dynamic Stress
3.1 Introduction
3.2 Stress Intensity Factor And Stress Field The Sichuan-Yunan Region
3.3 Coulombchuan-Yunan Regionnd St
3.4 Energy Release and J-integral
3.5 Crack Growth
3.6 Crack Growth under Dynamic Loading
3.7 Cohesive Model in Rock Fracture
3.8 Numeric Method for Fracture Mechanics
3.9 Discussion
Acknowledgement
References

Chapter 4 Multiple Linear Regression Analyses on the Relationships among Magnitude, Rupture Length, Rupture Width, Rupture Area, and Surface Displacement
4.1 Introduction
4.2 Data
4.3 Linear Models and Computational Approach
4.4 Results
4.5 Consluding Remarks
Acknowledgments
References

Chapter 5 PI Algorithm Applied to the Sichuan-Yunnan Region: A Statistical Physics Method for Intermediate-term Medium-range Earthquake Forecast in Continental China
5.1 The PI Algorithm
5.2 The Sichuan-Yunan Region
5.3 PI Algorithm Applied to the Sichuan-Yunnan Region
5.4 Discussion and Development of the PI Application
5.5 Concluding Remark
Acknowledgement
References

Chapter 6 Probabilistic Seismic Hazard Assessment for Pacific Island Countries
6.1 Introduction
6.2 Data
6.3 Kinematic Modeling Based on GPS and Active Faults
6.4 Modeling the Regional Seismicity
6.5 Probabilistic Seismic Hazard Maps
6.6 Discussion
Acknowledgments
References