Download or read book Ground Motion Maps that Account for Site Effects Basin Effects Duration of Shaking and Rupture Directivity in the San Francisco Bay Area written by Paul G. Somerville and published by . This book was released on 1999 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Near fault Ground Motion Estimates Including Directivity Effects from Large Strike slip Earthquakes in the San Francisco Bay Area written by Paul G. Somerville and published by . This book was released on 1997 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Shaky Ground written by Association of Bay Area Governments and published by . This book was released on 1998 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquake Scenario Ground Motion Hazard Maps for the San Francisco Bay Region written by John Frederick Schneider and published by . This book was released on 1998 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Near fault Ground Motion Estimates Including Directivity Effects from Large Strike slip Earthquakes in the San Francisco Bay Area written by Paul G. Somerville and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The San Francisco Bay Area on Shaky Ground written by Association of Bay Area Governments and published by . This book was released on 1995 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress on Seismic Zonation in the San Francisco Bay Region written by and published by . This book was released on 1979 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground Motion Modeling of Hayward Fault Scenario Earthquakes II written by and published by . This book was released on 2009 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: We simulate long-period (T> 1.0-2.0 s) and broadband (T> 0.1 s) ground motions for 39 scenarios earthquakes (Mw 6.7-7.2) involving the Hayward, Calaveras, and Rodgers Creek faults. For rupture on the Hayward fault we consider the effects of creep on coseismic slip using two different approaches, both of which reduce the ground motions compared with neglecting the influence of creep. Nevertheless, the scenario earthquakes generate strong shaking throughout the San Francisco Bay area with about 50% of the urban area experiencing MMI VII or greater for the magnitude 7.0 scenario events. Long-period simulations of the 2007 Mw 4.18 Oakland and 2007 Mw 4.5 Alum Rock earthquakes show that the USGS Bay Area Velocity Model version 08.3.0 permits simulation of the amplitude and duration of shaking throughout the San Francisco Bay area, with the greatest accuracy in the Santa Clara Valley (San Jose area). The ground motions exhibit a strong sensitivity to the rupture length (or magnitude), hypocenter (or rupture directivity), and slip distribution. The ground motions display a much weaker sensitivity to the rise time and rupture speed. Peak velocities, peak accelerations, and spectral accelerations from the synthetic broadband ground motions are, on average, slightly higher than the Next Generation Attenuation (NGA) ground-motion prediction equations. We attribute at least some of this difference to the relatively narrow width of the Hayward fault ruptures. The simulations suggest that the Spudich and Chiou (2008) directivity corrections to the NGA relations could be improved by including a dependence on the rupture speed and increasing the areal extent of rupture directivity with period. The simulations also indicate that the NGA relations may under-predict amplification in shallow sedimentary basins.

Download or read book Studies for Seismic Zonation of the San Francisco Bay Region written by R. D. Borcherdt and published by . This book was released on 1975 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of closely related earth science studies that define the nature and severity of earthquake hazards associated with geologic conditions.

Download or read book Modeling Three dimensional Site Response Effects in the Marina District Basin San Francisco California written by Robert W. Graves and published by . This book was released on 1992 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revision of Ground Shaking Hazard Maps for Selected Scenarios and Combinations of Scenarios San Francisco Bay Area written by Jeanne B. Perkins and published by . This book was released on 2001* with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Real Dirt on Liquefaction written by Jeanne B. Perkins and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to ABAG s Earthquake Hazard Mapping Capability written by and published by . This book was released on 1983 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Evaluation of Providing Earthquake Hazard Maps and Other Data on the Internet Using ABAG s Civic Network written by Jeanne B. Perkins and published by . This book was released on 1996 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Third Conference on Earthquake Hazards in the Eastern San Francisco Bay Area written by and published by . This book was released on 2010 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improved Seismic Monitoring Improved Decision Making written by National Research Council and published by National Academies Press. This book was released on 2006-01-04 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improved Seismic Monitoringâ€"Improved Decision-Making, describes and assesses the varied economic benefits potentially derived from modernizing and expanding seismic monitoring activities in the United States. These benefits include more effective loss avoidance regulations and strategies, improved understanding of earthquake processes, better engineering design, more effective hazard mitigation strategies, and improved emergency response and recovery. The economic principles that must be applied to determine potential benefits are reviewed and the report concludes that although there is insufficient information available at present to fully quantify all the potential benefits, the annual dollar costs for improved seismic monitoring are in the tens of millions and the potential annual dollar benefits are in the hundreds of millions.

Download or read book An Empirical Interpretation of the Effects of Topography on Ground Motion of the San Fernando California Earthquake 9 February 1971 written by Frank K. Chang and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study attempts to determine site effects on earthquake ground motion and the correlation between acceleration and/or velocity generated during the San Fernando Earthquake and topography of the San Gabriel Mountain range. It was found that the contours of peak acceleration and peak velocity generally follow the topography of the San Gabriel Mountain range. The topographical effects on the ground motion could be interpreted in a simple manner as a function of elevation and direction of wave transmission path. The elevation and direction become the dominant factors in the distribution of the ground motion in the near field. A simple, practical method for calculating the bedrock motion using the ground motion-elevation gradient has been applied in the area south of Kagel Mountain and north of Santa Monica Mountain, in the San Fernando Valley. This method is validated using after-shock data. This ground motion-elevation gradient method was applied to an area where the topography has its highest elevation at the epicentral region and decreases in elevation to the surrounding locations in the near field (within 30 km). In any case, when the epicenter occurs at an elevation lower than the elevation of the surrounding area, this gradient method may not be applicable and must be tested for this alternate condition.