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Earthquake Hazard Assessment : India and Adjacent Regions - Sreevalsa Kolathayar

Earthquake Hazard Assessment

India and Adjacent Regions


Published: 15th May 2018
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This book represents a significant contribution to the area of earthquake data processing and to the development of region-specific magnitude correlations to create an up-to-date homogeneous earthquake catalogue that is uniform in magnitude scale. The book discusses seismicity analysis and estimation of seismicity parameters of a region at both finer and broader levels using different methodologies. The delineation and characterization of regional seismic source zones which requires reasonable observation and engineering judgement is another subject covered. Considering the complex seismotectonic composition of a region, use of numerous methodologies (DSHA and PSHA) in analyzing the seismic hazard using appropriate instruments such as the logic tree will be elaborated to explicitly account for epistemic uncertainties considering alternative models (For Source model, Mmax estimation and Ground motion prediction equations) to estimate the PGA value at bedrock level. Further, VS30 characterization based on the topographic gradient, to facilitate the development of surface level PGA maps using appropriate amplification factors, is discussed. Evaluation of probabilistic liquefaction potential is also explained in the book. Necessary backgrounds and contexts of the aforementioned topics will be elaborated through a case study specific to India which features spatiotemporally varied and complex tectonics. This makes the book very unique and comprehensive, touching as it does on various aspects of seismic hazards. The methodology and outcomes presented in this book will be beneficial to practising engineers and researchers working in the fields of seismology and geotechnical engineering in particular and to society in general.

IntroductionGeneral on EarthquakesEarthquake SizeIntensity MagnitudeGround Motion Prediction Equations (GMPE) Logic Tree Approach Seismotectonics of Indian region Active tectonics shallow crustal regionSubduction zonesStable continental shield regionGeological Setting of IndiaEarlier seismic hazard studies done for India Summary Earthquake Data Processing and Seismicity AnalysisIntroduction Compilation of Earthquake Database Homogenization of Earthquake Magnitude Identification of main ShocksCompleteness Analysis Development of Seismotectonic map Scanning of maps Georeferencing and digitization Seismic Source ModellingSeismic Source ModelsLinear SourcesPoint SourcesGridded Seismicity ModelAreal SourcesSummary Deterministic Seismic Hazard AnalysisIntroduction MethodologyEstimation of hazard Attenuation ModelsLogic tree structureResults and Discussions Summary Characterization of Regional Seismic ZonesIntroduction Seismicity AnalysisEstimation of seismicity parameters Magnitude of CompletenessEstimation of a, b valuesDelineation of Seismic Source Zones Evaluation of Mmax for Different Seismic Source Zones Estimation of Seismicity Parameters for Source Zones Summary Probabilistic Seismic Hazard Analysis Introduction MethodologyEvaluation of Ground MotionMagnitude Recurrence Rate Evaluation of Hypocentral Uncertainty Uncertainty in Attenuation Relation Logic tree StructureResults and Discussions Summary Site Response and Liquefaction Analysis IntroductionSite classification methodsSurface GeologyGeotechnical DataGeophysical DataEurocode-8 and NEHRPSite responseDevelopment of VS30 map from topographic slopePreparation of slope mapGeneration of VS30 mapEstimation of Surface level PGA valuesLiquefaction Potential EvaluationSummary References

ISBN: 9781138309234
ISBN-10: 1138309230
Audience: Tertiary; University or College
Format: Hardcover
Language: English
Number Of Pages: 180
Published: 15th May 2018
Publisher: CRC PR INC
Country of Publication: GB
Dimensions (cm): 24.8 x 17.1