Progress on Seismic Zonation in the San Francisco Bay Region |
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America Bulletin Andreas fault zone artificial fills avalanches bay mud block slides Borcherdt building class California census tract cm/yr damage-control features deposits depth disintegrating slides dwellings earthquake intensity earthquake losses Engineering estimates Figure four stories Francisco Bay area Francisco Bay region Fumal geologic effects Geological Survey Professional Gorda plate ground failure ground motion ground shaking Hayward fault Hebgen Lake high susceptibilities historic earthquakes Holocene land-use landslides landslides in artificial large earthquake Lateral spreads liquefaction potential liquefaction susceptibility losses to buildings Mercalli Intensity Scale Microzonation moderate Mountain nine-county particle velocity percent loss predicted Rock fall-avalanches rupture San Andreas fault San Fernando Valley San Francisco Bay San Mateo County sediments seismic velocities seismic zonation SEISMICALLY INDUCED LANDSLIDE shear wave velocity silty slides in soil slopes Slumps and block steep Sub-aqueous landslides surface Survey Professional Paper susceptibility map Table triggered U.S. Geological Survey underlain Wet flows Youd
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Page 85 - ABSTRACT ABAG has used several techniques for combining earth science maps. These techniques include land capability analysis and various methods of calculating maximum earthquake intensity and cumulative economic risk due to earthquake damage. The resulting maps and data are more easily used in ABAG's planning programs, including: o providing data on characteristics of large vacant industrial sites and potential seaports o locating areas deserving further study for use as potential disposal sites...
Page vi - Since the study was started in 1970, it has produced more than 70 reports and maps. These cover a wide range of topics: reduction of flood and earthquake hazards, unstable slopes, engineering characteristics of hillside and lowland areas, mineral and water resources management, solid and liquid waste disposal, erosion and sedimentation problems, bay water circulation patterns, and others. The methods used in the study and the results it has produced have elicited broad interest and a wide range of...
Page vi - The complexity, however, can be greatly reduced if we understand the natural characteristics of the land, the processes that shape it, its resource potential, and its natural hazards. These subjects are chiefly within the domain of the earth sciences: geology, geophysics, hydrology, and the soil sciences. Appropriate earth-science information, if available, can be rationally applied in guiding growth and development, but the existence of the information does not assure its effective use in the day-to-day...
Page 12 - Mark, RK , and Bonilla, MG, 1977, Regression analysis of earthquake magnitude and surface fault length using the 1970 data of Bonilla and Buchanan: US Geological Survey Open-file Report 77-614, 8 p.
Page vi - It is hoped that the study will aid the planning and decisionmaking community by (1) identifying important problems that are rooted in the earth sciences and related to growth and development in the bay region; (2) providing the earth-science information that is needed to solve these problems; (3) interpreting and publishing findings in forms understandable to and usable by nonscientists; (4) establishing new avenues of communication between scientists and users, and (5) exploring alternate ways...
Page 47 - A Probabilistic Estimate of Maximum Ground Acceleration in the Contiguous United States; US Geological Survey Open-File Report 76-416.
Page 36 - Finite element analysis of seismic scattering problems, Ph.D. Dissertation, University of California, San Diego. (7) Madariaga, R. (1976). Dynamics of an expanding circular fault, Bull. Seism. Soc . Am. 66, p. 639-666. ~~~ REFERENCES (continued) (8) Ben-Menahem, A. (1962). Radiation of seismic body waves from a finite source in the Earth, J. Geophys. Res. 67, p. 345-350. (9) Savage, JC and MD Wood (1971). The relation between apparent stress and stress drop, Bull. Seism. Soc. Am. 61 , p. 1381-1388....
Page 60 - Youd, TL, and Perkins, DM , 1978, Mapping Liquefaction-Induced Ground Failure Potential: Journal of the Geotechnical Engineering Division, Amer.
Page vi - ... 74,400-square-mile San Francisco Bay region, it explored a problem common to all communities: how best to plan for orderly development and growth and yet conserve our natural resource base, insure public health and safety, and minimize degradation of our natural and manmade environment. Such planning requires that we understand the natural characteristics of the land, the processes that shape it, its resource potential, and its natural hazards. These subjects are chiefly within the domain of...
Page 25 - In-situ measurements of seismic velocities in the San Francisco Bay Region, Part III, US Geological Survey Open-File Report 76-731, 145 p.