Earthquake Hazard Assessment: India and Adjacent Regions

ISBN-13: 9781138309234 / Angielski / Twarda / 2018 / 176 str.

Sreevalsa Kolathayar; T. G. Sitharam

Opis

The book provides an overview of the background to and details of earthquake hazard estimation in India in a very comprehensive manner with details on seismicity data management, seismicity analysis, seismic source characterization, seismic hazard estimation using various methods and site characterization. The work presents a scientific approach for earthquake hazard analysis with a case study covering India and adjoining regions, a spatiotemporally complex region with varied tectonic provinces featuring different seismicity characteristics.

Spis treści

1 Introduction 1.1 Earthquakes 1.2 Earthquake size 1.3 Geological setting of India 1.4 Seismotectonics of Indian subcontinent 1.5 Ground motion prediction equations 1.6 Seismic gap 1.7 Past efforts of seismic hazard studies in India 2 Earthquake data and source models 2.1 Introduction 2.2 Compilation of the earthquake database 2.3 Homogenization of earthquake magnitude 2.4 Identification of main shocks 2.5 Completeness analysis 2.6 Development of a seismotectonic map for India 2.7 Seismic source models 2.8 Summary 3 Deterministic seismic hazard assessment 3.1 Introduction 3.2 Methodology 3.3 Estimation of hazard for Indian subcontinent 3.4 Discussions 4 Seismicity analysis and characterization of source zones 4.1 Introduction 4.2 Seismicity analysis 4.3 Delineation of seismic source zones 4.4 Evaluation of Mmax for different seismic source zones 4.5 Estimation of seismicity parameters for source zones 4.6 Summary 5 Probabilistic seismic hazard assessment 5.1 Introduction 5.2 Methodology 5.3 Evaluation of ground motion 5.4 PSHA of Indian subcontinent – A case study 6 Site response and liquefaction analyses 6.1 Introduction 6.2 Site classification 6.3 Site classification methods 6.4 Development of the VS30 map from the topographic slope 6.5 Estimation of surface-level PGA values 6.6 Evaluation of liquefaction potential 6.7 General remarks References Appendix A Magnitude conversion relations Appendix B Frequency magnitude distribution plots of seismic source zones Appendix C Results of PSHA with equal weighting scheme Appendix D Preparation of the slope map