Download or read book State of the Art Assessing Earthquake Hazards in the United States written by E. L. Krinitzsky and published by . This book was released on 1974 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Earthquakes of engineering interest are normally considered to result only from slippage or movement along existing faults. Hence, the detection of existing faults and their assessment as active or inactive constitutes an essential aspect of earthquake design. Some faults in soft sediments, through active, may not have the capability of generating earthquakes and must be so interpreted. Active faults generally may be evaluated for their maximum capacity to generate earthquakes through a synthesis of the local geologic and seismic history and worldwide relationships between fault dimensions earthquakes. Major earthquakes are caused by slippage along large faults, which are unlikely to be missed in detailed geologic investigations for sites in western United States. This may not be the case in the central and eastern United States. Small faults may be missed in any investigation so that a floating earthquake of limited size must be assumed to account for them. When faulting is not manifest at the surface, seismic history and geologic investigations can define geographic limits or zones for which floating earthquakes of various sizes are assigned"--Page ix.
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by and published by . This book was released on 1973 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the Art for Assessing Earthquake Hazards in the United States written by Jack L. Walper and published by . This book was released on 1976 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Otto W. Nuttli and published by . This book was released on 1978 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is concerned with the problem of estimating credible values of the peak velocity and acceleration of the ground motion for central United States earthquakes. The report contains a catalog of all known earthquakes large enough to be felt or of body-wave magnitude greater than or equal to 3. The data of the catalog are plotted on a map, which together with structural geological information is used to identify eight seismic source zones in the central United States. The boundaries of the source zones are inexact, so that special study will be required for establishing credible ground-motion values for sites near the boundaries. A maximum-magnitude earthquake is determined for each zone, as well as a magnitude-recurrence equation. Using the Murphy-O'Brien formulation, as well as theoretical results of Herrmann and a limited amount of strong-motion data for the central United States, equations are derived for that region which relate maximum horizontal acceleration and velocity to body-wave magnitude and epicentral distance. (Author).
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Charles E. Glass and published by . This book was released on 1978 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in the fields of remote sensing, engineering geology, seismology, and earthquake engineering have developed a need for a systematic comprehensive review of the basic principles and methods of applying remote sensing for evaluation of earthquakes hazards and seismic risk. This paper responds to this need by reviewing basic concepts, summarizing essential, state-of-the-art knowledge of theory and instrumental methods, establishing procedures evaluations, and discussing representative case histories that illustrate earthquake hazard evaluations that are based on remote sensing analysis. The approach that is recommended is based on a 'multi' approach that uses an integrated and systematic study of a region or a fault with a variety of imagery varying from small-scale (synoptic) to large-scale (detailed). The imagery analysis should be followed by a ground verification program of study that should include both ground and aerial reconnaissance examination of the major geologic structures of concern. The character of the earthquake hazards is discussed in the context of the lithologic, structural, vegetational, and topographic variations that are associated with different types of active geologic structures. The response of earth materials, landforms, and geologic structures is summarized for the several main types of passive and active electromagnetic radiation used in current remote-sensing practice. Limitations of the different spectral regions used in remote sensing are reviewed to assist in the selection of ideal methods or sequences of methods of study for effective evaluation of active or capable faults and for assessing the earthquake potential of geological structures that may affect a given engineering site.
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by E. L. Krinitzsky and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Frank K. Chang and published by . This book was released on 1977 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Active Tectonics written by National Research Council and published by National Academies Press. This book was released on 1986-01-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 250,000 people were killed in the Tangshan, China earthquake of 1976, and other less active tectonic processes can disrupt river channels or have a grave impact on repositories of radioactive wastes. Since tectonic processes can be critical to many human activities, the Geophysics Study Committee Panel on Active Tectonics has presented an evaluation of the current state of knowledge about tectonic events, which include not only earthquakes but volcanic eruptions and similar events. This book addresses three main topics: the tectonic processes and their rates, methods of identifying and evaluating active tectonics, and the effects of active tectonics on society.
Download or read book State of the Art for Assessing Earthquake Hazards in the United States written by Otto W. Nuttli and published by . This book was released on 1973 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The earthquake risk problems in the Central United States, taken to be approximately the area east of the Rocky Mountains and west of the Appalachians, is discussed. The seismic history of the area is reviewed and is used to divide the area into the various seismic regions. A design earthquake, defined as the largest earthquake that can be expected to occur within an area, is specified for each of the three seismic regions. Specification of the design earthquake is accomplished by giving ground displacement, particle velocity, and acceleration values in hard rock as a function of distance from the earthquake, for three particular wave frequencies. The results are presented in graphical and tabular form. A brief discussion of the effects of soil instability is included. The problem is of particular importance in the Mississippi and other major river valleys of the Central United States"--Page ix
Download or read book Principles for Selecting Earthquake Motions in Engineering Design of Large Dams written by Ellis Louis Krinitzsky and published by . This book was released on 1983 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Mishac K. Yegian and published by . This book was released on 1979 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a comprehensive review of the state of the art of probabilistic seismic hazard analysis. This type of analysis essentially provides information regarding the likelihood that various levels of a ground motion parameter will be exceeded in a given period of time. The report begins with a discussion of the various seismic parameters required for the analysis and the calculation of these parameters based on seismic history data. Problems involved in the estimation of these parameters exclusively on the basis of seismological data are outlined, and emphasis is placed on the need to utilize and incorporate geologic and geophysical information in the analysis. A brief presentation of Baye's theorem and discussion of the procedure for seismic hazard estimation using the theorem are provided. The report continues with a presentation of the various mathematical formulations used in the calculation of seismic hazard probabilities. This section also includes a discussion of the use of computer programs to facilitate the calculations involved in the analysis. Concluding the report is a presentation and discussion of the various practical applications of seismic hazard analysis, emphasizing use in structural and geotechnical engineering. Some recent seismic hazard maps for the U.S. incorporating probability calculations are presented and reviewed in this section. (Author).
Download or read book Earthquake Engineering Research Center Library Printed Catalog written by University of California, Berkeley. Earthquake Engineering Research Center. Library and published by . This book was released on 1975 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Bruce A. Bolt and published by . This book was released on 1983 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Daniele Veneziano and published by . This book was released on 1982 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Walter J. Silva and published by . This book was released on 1987 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Ronald B. Meade and published by . This book was released on 1982 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The published evidence of reservoir-induced macroearthquakes is critically reviewed. The evidence is partitioned into three types: (a) evidence of a postimpoundment increase in seismicity, (b) correlation evidence that is composed of a plot of a reservoir variable and a seismicity variable and, in most cases, an auxiliary variable, time, and (c) evidence based on the slope of the magnitude-frequency relationship (b value evidence). The basic source for each of these types of evidence is a suitably edited catalog of earthquake occurrences. Recommendations are given regarding catalog preparation and editing. The types of evidence are examined to recognize the effects of common methods of data acquisition and treatment. Postimpoundment change in seismicity can be assessed using certain recommended statistical tests. Recommendations are made regarding construction and interpretation of correlation evidence. The interpretation of correlation evidence is subjective because the assumptions required to construct and interpret the evidence cannot be verified. Evidence based on the b value is shown to be useless as a discriminant to identify induced seismicity from normal seismicity. Eight cases of reservoir induced macroearthquakes are reviewed. These eight cases are: (a) Hoover/Lake Mead, (b) Kariba, (c) Kremasta, (d) Koyna, (e) Kurobe, (f) Manic 3, (g) Hsinfengkiang, and (h) Nurek.
Download or read book State of the art for Assessing Earthquake Hazards in the United States written by Scott L. Hardman and published by . This book was released on 1987 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
