Download or read book Major to Great Earthquakes Multidisciplinary Geophysical Analyses for Source Characterization written by Debora Presti and published by Frontiers Media SA. This book was released on 2021-10-22 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Research and Analysis written by Sebastiano D'Amico and published by BoD – Books on Demand. This book was released on 2012-02-08 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to different aspects of earthquake research. Depending on their magnitude and the placement of the hypocenter, earthquakes have the potential to be very destructive. Given that they can cause significant losses and deaths, it is really important to understand the process and the physics of this phenomenon. This book does not focus on a unique problem in earthquake processes, but spans studies on historical earthquakes and seismology in different tectonic environments, to more applied studies on earthquake geology.
Download or read book Living on an Active Earth written by National Research Council and published by National Academies Press. This book was released on 2003-08-22 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: The destructive force of earthquakes has stimulated human inquiry since ancient times, yet the scientific study of earthquakes is a surprisingly recent endeavor. Instrumental recordings of earthquakes were not made until the second half of the 19th century, and the primary mechanism for generating seismic waves was not identified until the beginning of the 20th century. From this recent start, a range of laboratory, field, and theoretical investigations have developed into a vigorous new discipline: the science of earthquakes. As a basic science, it provides a comprehensive understanding of earthquake behavior and related phenomena in the Earth and other terrestrial planets. As an applied science, it provides a knowledge base of great practical value for a global society whose infrastructure is built on the Earth's active crust. This book describes the growth and origins of earthquake science and identifies research and data collection efforts that will strengthen the scientific and social contributions of this exciting new discipline.
Download or read book From Preparation to Faulting Multidisciplinary Investigations on Earthquake Processes written by Fuqiong Huang and published by Frontiers Media SA. This book was released on 2023-06-29 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Hazards and Mitigation written by R. Ayothiraman and published by I. K. International Pvt Ltd. This book was released on 2008 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: discusses the new developments in the field of earthquake engineering and allied areas, " gives information about present state-of-the-art and current practices adopted globally in prediction and mitigation of earthquake hazards, " explores novel and innovative methods for prediction and mitigation of hazards considering the future earthquakes for building sustainable/ safe infrastructures and ensuring safety of community.
Download or read book Treatise on Geophysics written by and published by Elsevier. This book was released on 2015-04-17 with total page 5604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole
Download or read book Earthquake Resistant Engineering Structures VI written by C. A. Brebbia and published by WIT Press. This book was released on 2007 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of protecting the built environment in earthquake-prone regions of the world involves not only the optimal design and construction of new facilities, but also the upgrading and rehabilitation of existing structures and infrastructures. The latter is a laborious and expensive task, which can be accomplished only gradually. However, the inestimable loss of life and the colossal costs following a major earthquake in a metropolitan area provide sufficient reason to make it an important challenge for the scientific and technical community.Containing papers presented at the Sixth International Conference on Earthquake Resistance and Engineering Structures, this book will be invaluable to engineers, scientists and managers working in industry, academia, research organizations and governments. The book encompasses a wide range of topics such as: Site Effects and Geotechnical aspects; Earthquake resistant design; Seismic Behaviour and Vulnerability; Structural Dynamics; Monitoring and Testing; Bridges; Heritage Buildings; Masonry Construction; Retrofitting; Passive Protection Devices and Seismic Isolation; Lifelines; Design Codes and Response Spectre.
Download or read book National Earthquake Hazards Reduction Program Summaries of Technical Reports Volume XXXIII written by and published by . This book was released on 1992 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Open file Report written by and published by . This book was released on 1992 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Source and Effects of Light to Moderate Magnitude Earthquakes written by Nicola Alessandro Pino and published by Frontiers Media SA. This book was released on 2022-02-02 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquakes Simulations Sources and Tsunamis written by Kristy F. Tiampo and published by Springer Science & Business Media. This book was released on 2008-11-04 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume attempts to present the current state of seismic research by focusing not only on the modeling of earthquakes and earthquake generated tsunamis, but also on practical comparisons of the resulting phenomenology. In the 1990s, major advancements in seismic research greatly added to the understanding of earthquake fault systems as complex dynamical systems. Large quantities of new and extensive remote sensing data sets provided information on the solid earth.
Download or read book Submarine Active Faults From Regional Observations to Seismic Hazard Characterization written by Hector Perea and published by Frontiers Media SA. This book was released on 2022-01-20 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Handbook of Earthquake Engineering Seismology Part B written by William H.K. Lee and published by Elsevier. This book was released on 2003-07-23 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volume International Handbook of Earthquake and Engineering Seismology represents the International Association of Seismology and Physics of the Earth's Interior's (IASPEI) ambition to provide a comprehensive overview of our present knowledge of earthquakes and seismology. This state-of-the-art work is the only reference to cover all aspects of seismology--a "resource library" for civil and structural engineers, geologists, geophysicists, and seismologists in academia and industry around the globe.Part B, by more than 100 leading researchers from major institutions of science around the globe, features 34 chapters detailing strong-motion seismology, earthquake engineering, quake prediction and hazards mitigation, as well as detailed reports from more than 40 nations. Also available is The International Handbook of Earthquake and Engineering Seismology, Part A. Authoritative articles by more than 100 leading scientists Extensive glossary of terminology plus 2000+ biographical sketches of notable seismologists
Download or read book Analysis of Seismic Source Characteristics Across A Broad Range Of Spatial Scales written by Chanel Deane and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the abundance of global seismic waveform data across a broad range of temporal and spatial scales, ample opportunities exist to investigate seismic source and propagation effects. In this dissertation, I present results from three inductive, observation-driven analyses that exploit local-to-teleseismic distance seismic observations to explore seismic source characteristics across a broad range of spatial scales. Each investigation emphasized one or more seismological challenges that remain despite advances in global instrumentation, source characterization approaches, and seismic wave propagation modeling. For the first investigation, we exploited local-distance P- and S-wave observations generated by mining-related and small-magnitude events at a gold mine in South Africa to explore the robustness of P-to-S-wave amplitude ratios. P/S amplitude ratios are traditionally used in discrimination studies between earthquakes and explosions recorded at regional and teleseismic distances (greater than 200km). Fewer studies have explored the variability of P/S amplitude ratios using data recorded at local distances, distances less than 200 km, where more scrutiny of wave propagation, near-surface geology, and source and strain release patterns are required. We took advantage of the dense seismic network at the Klerksdorp mine to investigate the variability of low-yield earthquake and mining-related event P/S amplitude ratios at local distances. Our results showed that most locally recorded low-magnitude events in the Klerksdorp region have comparable shear-wave energy to low-magnitude earthquakes. Our time-domain rms-based measurement of P and S amplitudes resulted in stable event average P/S ratios that are likely separate from explosive sources. We used the observations to demonstrate the expected variability of the ratios with smaller seismic networks (3-, 5-, 7-station) to show the amplitude ratios remained relatively stable across a bandwidth of 1-30 Hz, but ratio variability decreased with increasing station number. In the second investigation, we conducted an earthquake relocation study of moderate-to-large magnitude events along the Southwest Indian Ridge (SWIR) from 1990 to 2022 using global surface wave observations. Earthquake locations are essential parameters used in seismology to investigate earthquake processes, tectonics, and the subsurface. Although seismologists have constrained the location of an earthquake reasonably well using arrival-time measurements, important tectonic regions, such as mid-ocean ridges (MOR), remain less well-constrained because of the lack of nearby seismic stations. We leveraged an existing surface-wave relative relocation approach to estimate precise relative locations along the SWIR, investigate updated seismicity patterns, and relate those patterns to tectonic processes occurring along the ultra-slow-to-slow spreading ridge system. To handle the large data set from a broad region we used an artificial neural network to identify the highest-quality observations and reduce the computational burden associated with cross-correlating millions of surface waveforms. Our results show a 3-second reduction in location misfit and precise locations well within 5 km of bathymetric features demonstrating the ability to use global surface-wave observations to improve the precision of earthquake locations in a remote region. We observed (with greater clarity) many expected general tectonic patterns including single- and multiple strands active along transform faults, the gradual transition from normal to strike-slip faulting along ridge-transform intersections, clustering of normal-faulting along the ridge segments (including doublet and multiplet sequences), occasional migration of events along transforms and ridge segments, and clustering of events around ridge volcanoes or regions of unusual bathymetry. For the final investigation, we utilized abundant mining-related seismic events that occur each year in Pennsylvania and the wealth of local to regional seismic networks to evaluate short-period seismic-wave propagation across the region. Pennsylvania hosts many industrial seismic events and experiences a small number of naturally-occurring earthquakes, but industrial seismic sources are currently excluded in the generation of ground motion prediction equations. We performed a linear regression of peak ground-velocity measurements for industrial explosions in Pennsylvania. We examined the data across a frequency band from 1 to 16 Hz, but the best results with the most observations were those from the 1-2 Hz band. The results show that the small-magnitude explosion data are unable to resolve differences in simple models of the decrease in amplitude with distance. But the results demonstrate that applying the geometric spreading corrections used for magnitude estimates across the eastern US is reasonable for the short distances used to estimate the size of small mining events across the region. Regression produced a set of relative source sizes that exhibit a complicated relationship with locally estimated magnitudes. The difference between regression estimated source size and traditional analyst-based magnitudes correlates with local magnitude. Careful examination of the data suggested that observations from greater distance are hard to screen using signal-to-noise measurements and simple magnitude-dependent distance cutoff relationships. Thus, the traditional approach to magnitude estimation that relies on human or AI-expert-trained systems to separate signal and noise remains important, especially for the smaller events.
Download or read book Issues in Biophysics and Geophysics Research and Application 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Biophysics and Geophysics Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Biophysics and Geophysics Research and Application. The editors have built Issues in Biophysics and Geophysics Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Biophysics and Geophysics Research and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Biophysics and Geophysics Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Advances and Applications of Passive Seismic Source Characterization written by Lei Li and published by Frontiers Media SA. This book was released on 2023-10-09 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Source characterization is a fundamental task of passive seismic monitoring. Spatial-temporal evolution of both, point sources and finite-fault source, provides essential information for timely seismic hazard management and advanced analysis of the seismicity in the monitored areas. In the last few decades, the rise of dense seismic arrays, increase of high-performance computing resources, and development of advanced array-based techniques lead to studies using recorded wavefields in great detail. Full waveform inversion can invert passive seismic source parameters with an iterative framework, which connects the delay-and-sum imaging technique and kernel-based inversion strategy. Moreover, emerging technologies like distributed acoustic sensing and machine learning also have great potential in advancing passive seismic imaging and source characterization. Besides, non-earthquake sources and ambient noise, as unconventional and passive sources, are also undergoing rapid development in infrastructure monitoring and subsurface imaging, due to the emergence of sensitive sensors and modern techniques like seismic interferometry.
Download or read book Earthquake Source Mechanics written by Shamita Das and published by American Geophysical Union. This book was released on 1986 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
