Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"earthquake hazards"”.
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Active tectonics and earthquake hazards in continental mountain ranges and foreland basins
… active mountain belts are exposed to significant earthquake hazard, since the range-bounding faults produce large earthquakes, and the underlying geological structure amplifies the resulting ground shaking. The aim of this dissertation is to investigate the regional-scale controls on earthquake …
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1. Geodetic constraints on slip rates of large Central Asian faults 2. Earthquake Emergency Education in Dushanbe, Tajikistan
… and Talas-Ferghana faults are negligible. 2. Earthquake Emergency Education in Dushanbe, Tajikistan We developed a middle school earthquake science and hazards curriculum to promote earthquake awareness to students in the Central Asian country of Tajikistan. These materials include pre- and …
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1. Geodetic constraints on slip rates of large Central Asian faults 2. Earthquake Emergency Education in Dushanbe, Tajikistan
… and Talas-Ferghana faults are negligible. 2. Earthquake Emergency Education in Dushanbe, Tajikistan We developed a middle school earthquake science and hazards curriculum to promote earthquake awareness to students in the Central Asian country of Tajikistan. These materials include pre- and …
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Improving Reno Earthquake Hazard Assessment Through a Ground-Motion Model Analysis and Paleoseismic Study
… results of two complimentary methods to assess earthquake hazards around Reno, Nevada. First, we evaluate the performance of the four NGA-West2 (2014) Active Crustal models, which are trained on a global dataset of ground motion recordings, in the context of the Reno area. We compare the …
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A Comprehensive Analysis of Station Performance for the Nevada Seismological Laboratory Network
Earthquake hazards in Nevada are comparable to much of California, making instrumental studies of earthquakes in densely populated regions crucial for hazard mitigation and response. The Nevada Seismological Laboratory (NSL)is responsible for monitoring seismic activity in this area, and over time …
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Geophysical assessment of soil and rock in the New Madrid seismic zone
… the upper 100 ft was calculated and the national earthquake hazards reduction program (NEHRP) class D was assigned to the site based on MASW and DHS data results. At the Arkansas site, borehole control, electrical resistivity tomography (ERT), seismic refraction tomography (SRT), and multichannel …
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Geospatial Analyses of Seismic Hazards and Risk Perception in Libya
… a highly active seismic region. However, several earthquakes of magnitude >5.0 have occurred there. This dissertation analyzes the seismicity of Libya in order to better understand earthquake hazards, related geomorphic features, and the current evolution of Libyan perceptions of seismic risk. The …
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Cyclic Uniaxial Constitutive Model For Steel Reinforcement
Reinforced Concrete (RC) structures are common in earthquake-prone areas. During an earthquake, the steel reinforcement is subjected to cyclic strain histories which lead to inelastic response. In the case of rare, strong earthquakes, inelastic buckling and even rupture due to low-cycle fatigue can …
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Seismic Vulnerability Analysis of Scoured Bridge Systems
… at large. Understanding how natural hazards affect the life-cycle performance of bridge systems will lead to improved preparedness prior to extreme disasters and benefit the society ultimately. Among many natural events, flood-induced foundation scour has been recognized as a leading …
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Refraction Microtremor Analysis of Areas Surrounding California State University San Bernardino
… through the subsurface. These seismic hazards are being addressed via the Alquist-Priolo Earthquake Faulting Zone Act and the National Earthquake Hazards Reduction Program (NEHRP). Shear wave velocity of the subsurface has served as a proxy for ground motion amplification and is …
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Analysis of Seismicity and Related Seismic Risk in Muslim Countries: Case Studies from Afghanistan and Pakistan
… the gap between intent and action regarding earthquake hazards in Muslim countries with a focus on Afghanistan and Pakistan. Cultural biases provided predictions of risk perceptions and risk-taking preferences that were often more powerful than measures of knowledge and experience. In Muslim …
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Structural controls and diagenetic conditions associated with fluid migration on the Moab Fault, UT
… implications for resource management and earthquake hazards. The research presented within this dissertation addresses the fluid migration history of the Moab Fault, Utah. Using the stable isotope compositions of fault-hosted carbonate cements in conjunction with field and petrographic …
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An Analysis of Focal Parameters with Application to West Texas Micro-Earthquakes
… due to anisotropy in velocity models and micro-earthquake distribution, magnitudes and focal mechanism solutions in the Permian Basin. Seismic anisotropy, a typical property in fractured sedimentary rocks, may bias the identification of the location of microseismic events if using isotropic …
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Hybrid Steel Frames
… objectives (like life safety) under high earthquake hazard levels. However, the building performance at low performance objectives (like immediate occupancy) under low earthquake hazards is uncertain. The motivation of this research is to modify the design and detailing rules to make the …
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STRUCTURAL EVOLUTION OF THE RIO GRANDE RIFT: SYNCHRONOUS EXHUMATION OF RIFT FLANKS FROM 20-10 MA, EMBRYONIC CORE COMPLEXES, AND FLUID-ENHANCED QUATERNARY EXTENSION
… but also by a desire and a necessity to quantify earthquake hazards in New Mexico as well as to assess various water related issues throughout the state. These motivating topics have thus far led to the publication of two Geological Society of America Special Publication volumes in 1994 and 2013. …
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Landsliding and sediment dynamics following the 2008 Wenchuan Earthquake in the Beichuan area of China
… landsliding is a common feature in a post-earthquake mountainous environment. The intense seismic shaking of an earthquake leaves the ground destabilised and thus very susceptible to slope failure. In addition to co-seismic landsliding, many slopes retain the high potential to fail for a …
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Nonlinear seismic analysis of quasi-isolation systems for earthquake protection of bridges
… The system is a pragmatic approach for providing earthquake resilient bridges in locations such as the eastern and central United States, as well as in many locations around the world where there is significant earthquake risk at long recurrence periods. Such a seismic risk does not typically …
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Seismic analysis of Fire Station No. One: a historic unreinforced masonry building
… are critically vulnerable to failure during earthquakes. A substantial number of older structures in the United States have unreinforced masonry construction. Among these are important historic structures, vital to preserving regional and national heritage. Since earthquakes can likely damage …
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Resilience optimization of systems of interdepedent networks
… Just since 2001, adverse events such as earthquakes, landslides, and floods, have accounted for economic losses exceeding USD 1.68 trillion. Thus, governments and other stakeholders are giving priority to mitigate the effects of natural disasters over such critical infrastructure systems, …
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Seismic performance assessment of quasi-isolated highway bridges with seat-type abutments
… to protect civil engineering structures against earthquake hazards. For highway bridges, isolation physically decouples a bridge superstructure from its substructures resting on a shaking ground, leading to a significant reduction in the seismic forces transmitted from the superstructure to the …
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