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Maximum Magnitude And Probabilities Of Induced Earthquakes In California Geothermal Fields Applications For A Science Based Decision Framework
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Book Synopsis Maximum Magnitude and Probabilities of Induced Earthquakes in California Geothermal Fields: Applications for a Science-Based Decision Framework by : Deborah Anne Weiser
Download or read book Maximum Magnitude and Probabilities of Induced Earthquakes in California Geothermal Fields: Applications for a Science-Based Decision Framework written by Deborah Anne Weiser and published by . This book was released on 2016 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Induced seismicity is occurring at increasing rates around the country. Brodsky and Lajoie (2013) and others have recognized anthropogenic quakes at a few geothermal fields in California. I use three techniques to assess if there are induced earthquakes in California geothermal fields; there are three sites with clear induced seismicity: Brawley, The Geysers, and Salton Sea. Moderate to strong evidence is found at Casa Diablo, Coso, East Mesa, and Susanville. Little to no evidence is found for Heber and Wendel. I develop a set of tools to reduce or cope with the risk imposed by these earthquakes, and also to address uncertainties through simulations. I test if an earthquake catalog may be bounded by an upper magnitude limit. I address whether the earthquake record during pumping time is consistent with the past earthquake record, or if injection can explain all or some of the earthquakes. I also present ways to assess the probability of future earthquake occurrence based on past records. I summarize current legislation for eight states where induced earthquakes are of concern. Unlike tectonic earthquakes, the hazard from induced earthquakes has the potential to be modified. I discuss direct and indirect mitigation practices. I present a framework with scientific and communication techniques for assessing uncertainty, ultimately allowing more informed decisions to be made.
Book Synopsis The Uniform California Earthquake Rupture Forecast, Version 2 (UCERF 2) by : Working Group on California Earthquake Probabilities
Download or read book The Uniform California Earthquake Rupture Forecast, Version 2 (UCERF 2) written by Working Group on California Earthquake Probabilities and published by . This book was released on 2008 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accompanying CD-ROM has same title as book.
Book Synopsis Induced Seismicity Potential in Energy Technologies by : National Research Council
Download or read book Induced Seismicity Potential in Energy Technologies written by National Research Council and published by National Academies Press. This book was released on 2013-08-14 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past several years, some energy technologies that inject or extract fluid from the Earth, such as oil and gas development and geothermal energy development, have been found or suspected to cause seismic events, drawing heightened public attention. Although only a very small fraction of injection and extraction activities among the hundreds of thousands of energy development sites in the United States have induced seismicity at levels noticeable to the public, understanding the potential for inducing felt seismic events and for limiting their occurrence and impacts is desirable for state and federal agencies, industry, and the public at large. To better understand, limit, and respond to induced seismic events, work is needed to build robust prediction models, to assess potential hazards, and to help relevant agencies coordinate to address them. Induced Seismicity Potential in Energy Technologies identifies gaps in knowledge and research needed to advance the understanding of induced seismicity; identify gaps in induced seismic hazard assessment methodologies and the research to close those gaps; and assess options for steps toward best practices with regard to energy development and induced seismicity potential.
Book Synopsis Unconventional Reservoir Geomechanics by : Mark D. Zoback
Download or read book Unconventional Reservoir Geomechanics written by Mark D. Zoback and published by Cambridge University Press. This book was released on 2019-05-16 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the key geologic, geomechanical and engineering principles that govern the development of unconventional oil and gas reservoirs. Covering hydrocarbon-bearing formations, horizontal drilling, reservoir seismology and environmental impacts, this is an invaluable resource for geologists, geophysicists and reservoir engineers.
Download or read book UCERF3 written by Edward H. Field and published by . This book was released on 2015 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monitoring Geothermal Wells and Spring Conditions in Selected Areas of California for Earthquake Precursors by : Stephen P. Bezore
Download or read book Monitoring Geothermal Wells and Spring Conditions in Selected Areas of California for Earthquake Precursors written by Stephen P. Bezore and published by . This book was released on 1985 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :California. Legislature. Joint Committee on Science and Technology Publisher : ISBN 13 : Total Pages :182 pages Book Rating :4.3/5 (197 download)
Book Synopsis Earthquake Prediction Research Funding by : California. Legislature. Joint Committee on Science and Technology
Download or read book Earthquake Prediction Research Funding written by California. Legislature. Joint Committee on Science and Technology and published by . This book was released on 1990 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probabilistic Estimates and Theoretical Controls of Earthquake Size by : Jeremy Maurer
Download or read book Probabilistic Estimates and Theoretical Controls of Earthquake Size written by Jeremy Maurer and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquakes are complex, stochastic processes. They occur throughout the world, and even though we know so much about them, more often than not we learn something new each time a large event occurs. In California, where much time and money has been spent on monitoring, measuring, and forecasting seismicity, there is little evidence to suggest when the next San Andreas-rupturing earthquake will occur, or exactly how big it will get. However, earthquakes do obey the laws of physics. Some of these laws, friction in particular, are stochastic in their very nature; it is imperative to couple physics-based understanding with quantitative stochastic modeling to obtain a complete description of how earthquakes work. To do this, I look at two problems. The first problem is to develop a method to quantify uncertainty in the moment deficit rate (MDR) for regional-scale fault systems. There are three sources of uncertainty: with the data itself, in how well our models of the crust reflect its actual properties, and in the sensitivity of the data to the fault at depth. Prior to this work, no rigorous methods have existed to measure how uncertain any particular MDR estimate is. I show how a method termed the Constrained Optimization Bounding Estimator (COBE) rigorously quantifies uncertainty in the MDR related to the data and resolution of a given model, and that the current MDR in southern California is larger than expected given the historic moment release. The second problem I address is what controls the size of earthquakes in the context of induced seismicity. I consider how the restriction of seismicity to the pressurized zone would alter the frequency-magnitude statistics of induced events, and whether or not such changes have been or could be observed in real data. The last chapter uses fully dynamic rupture simulations on 2-D rough faults to characterize maximum earthquake size with and without pressure perturbations. The results indicate that earthquake hazard is governed more by the background stress conditions and less by injection-related parameters.
Book Synopsis Probabilities of Large Earthquakes in the San Francisco Bay Region, California by : Geological Survey (U.S.)
Download or read book Probabilities of Large Earthquakes in the San Francisco Bay Region, California written by Geological Survey (U.S.) and published by . This book was released on 1990 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probabilities of large earthquakes in the San Francisco Bay region, California by : Working Group on California Earthquake Probabilities
Download or read book Probabilities of large earthquakes in the San Francisco Bay region, California written by Working Group on California Earthquake Probabilities and published by . This book was released on 1990 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1970-06 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309492432 Total Pages :29 pages Book Rating :4.3/5 (94 download)
Book Synopsis Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space by : National Academies of Sciences, Engineering, and Medicine
Download or read book Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-06-18 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities â€" social, economic, security, and more â€" that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (National Academies Press, 2018) provides detailed guidance on how relevant federal agencies can ensure that the United States receives the maximum benefit from its investments in Earth observations from space, while operating within realistic cost constraints. This short booklet, designed to be accessible to the general public, provides a summary of the key ideas and recommendations from the full decadal survey report.
Book Synopsis Earthquake Data in Engineering Seismology by : Sinan Akkar
Download or read book Earthquake Data in Engineering Seismology written by Sinan Akkar and published by Springer Science & Business Media. This book was released on 2011-01-03 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses current activities in strong-motion networks around the globe, covering issues related to designing, maintaining and disseminating information from these arrays. The book is divided into three principal sections. The first section includes recent developments in regional and global ground-motion predictive models. It presents discussions on the similarities and differences of ground motion estimations from these models and their application to design spectra as well as other novel procedures for predicting engineering parameters in seismic regions with sparse data. The second section introduces topics about the particular methodologies being implemented in the recently established global and regional strong-motion databanks in Europe to maintain and disseminate the archived accelerometric data. The final section describes major strong-motion arrays around the world and their historical developments. The last three chapters of this section introduce projects carried out within the context of arrays deployed for seismic risk studies in metropolitan areas. Audience: This timely book will be of particular interest for researchers who use accelerometric data extensively to conduct studies in earthquake engineering and engineering seismology.
Book Synopsis Earthquake Probabilities for the Wasatch Front Region in Utah, Idaho, and Wyoming by : Working Group on Utah Earthquake Probabilities
Download or read book Earthquake Probabilities for the Wasatch Front Region in Utah, Idaho, and Wyoming written by Working Group on Utah Earthquake Probabilities and published by . This book was released on 2016 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication presents probabilistic earthquake forecasts developed by the Working Group on Utah Earthquake Probabilities which developed 30,50, and 100 year forecasts that include combined time dependent probabilities of large earthquakes for the five central segments of the Wasatch Fault Zone.
Book Synopsis Analysis of Injection-Induced Micro-Earthquakes in a Geothermal Steam Reservoir, The Geysers Geothermal Field, California by :
Download or read book Analysis of Injection-Induced Micro-Earthquakes in a Geothermal Steam Reservoir, The Geysers Geothermal Field, California written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study we analyze relative contributions to the cause and mechanism of injection-induced micro-earthquakes (MEQs) at The Geysers geothermal field, California. We estimated the potential for inducing seismicity by coupled thermal-hydrological-mechanical analysis of the geothermal steam production and cold water injection to calculate changes in stress (in time and space) and investigated if those changes could induce a rock mechanical failure and associated MEQs. An important aspect of the analysis is the concept of a rock mass that is critically stressed for shear failure. This means that shear stress in the region is near the rock-mass frictional strength, and therefore very small perturbations of the stress field can trigger an MEQ. Our analysis shows that the most important cause for injection-induced MEQs at The Geysers is cooling and associated thermal-elastic shrinkage of the rock around the injected fluid that changes the stress state in such a way that mechanical failure and seismicity can be induced. Specifically, the cooling shrinkage results in unloading and associated loss of shear strength in critically shear-stressed fractures, which are then reactivated. Thus, our analysis shows that cooling-induced shear slip along fractures is the dominant mechanism of injection-induced MEQs at The Geysers.
Book Synopsis Fluid-Induced Seismicity by : S. A. Shapiro
Download or read book Fluid-Induced Seismicity written by S. A. Shapiro and published by Cambridge University Press. This book was released on 2015-04-23 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a quantitative introduction to the physics, application, interpretation, and hazard aspects of fluid-induced seismicity, focussing on spatio-temporal dynamics. Including many real data examples, this is a valuable reference for researchers and graduate students of geophysics, geomechanics and petrophysics, and a practical guide for petroleum geoscientists and engineers.
Author :Intergovernmental Panel on Climate Change Publisher :Cambridge University Press ISBN 13 :1107025060 Total Pages :593 pages Book Rating :4.1/5 (7 download)
Book Synopsis Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation by : Intergovernmental Panel on Climate Change
Download or read book Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation written by Intergovernmental Panel on Climate Change and published by Cambridge University Press. This book was released on 2012-05-28 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extreme weather and climate events, interacting with exposed and vulnerable human and natural systems, can lead to disasters. This Special Report explores the social as well as physical dimensions of weather- and climate-related disasters, considering opportunities for managing risks at local to international scales. SREX was approved and accepted by the Intergovernmental Panel on Climate Change (IPCC) on 18 November 2011 in Kampala, Uganda.
