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 24 for “"active faults"”.
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Scaling relationships between GNSS co-seismic displacements and earthquake magnitude and kinematics of active faults
Στην παρούσα εργασία περιγράφουμε και διαθέτουμε μία βάση 138 σεισμικών μετατοπίσεων από τις καταγραφές μόνιμων σταθμών GPS, κατά την εικοσαετή χρονική περίοδο 1997-2021. Οι μετατοπίσεις οφείλονται σε μεγάλους, επιφανειακούς σεισμούς στον Ελληνικό χώρο οι οποίοι προκάλεσαν επιφανειακές κινήσεις …
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Integrated remote sensing and geophysical study of the Hockley fault in Harris and Montgomery Counties, Texas.
Active faults in Houston area are an ongoing problem, and this continues to cause damage to the local roads and infrastructures. Within the last 3 years, residents in the Woodlands area have reported increasing property damage from faulting caused by the Hockley Fault System. Rapid slip rates and …
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Active deformation of the Shargyn Basin, a transpressional strike-slip intersection in western Mongolia
… deformation are important in understanding broad active tectonic patterns, reconstructing past tectonics, analyzing seismic hazard and identifying potential resources. We examine the fault kinematics surrounding the 150 km wide Shargyn Basin at the intersection of the left-lateral transpressional …
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Assessment of Seismic Hazards along the Northern Gulf of Aqaba
… because they are located over the tectonically active Dead Sea transform fault (DST) that is the source of most of the major historical earthquakes in the region. The largest twentieth century earthquake on the DST, the magnitude Mw 7.2 Nuweiba earthquake of November 22, 1995, caused damage to …
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Tectonics of the Georgia Basin, northwest Washington State, USA, and southwest British Columbia, Canada
… the Cascadia forearc extends north of recognized active faults. This study reviews seismic reflection profiles from the SHIPS 1998 and 2002 experiments in conjunction with industry data to identify active geologic structures capable of accommodating this unaccounted strain. Here a new active …
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Seismic anomalies in stable continents: exploring earthquake clusters and hidden faults in Southern Africa
… earthquake clusters cannot be associated with faults and, con-versely, known major fault scarps often have no observed earthquake clusters. One example is the Hebron Fault Scarp (Chapter 2), a major neotectonic scarp which has no associated earthquake cluster reported in regional catalogues. In …
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Contributions to the Neotectonics of the central and northern Walker Lane
… It its defined by a broad zone of discontinuous active strike-slip and normal faulting that sit within a zone geodetically characterized by transtensional dextral shear. Strain in the Walker Lane is driven by the northwest translation of the Sierra Nevada and long-term geologic constraints on the …
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Alluvial river response to active tectonics in the Dehradun region, Northwest India: A case study of the Ganga and Yamuna rivers.
In environments characterised by active tectonics, it is widely accepted that river morphology will be affected by active fault displacement. For example, there is documented evidence of change in channel slope, channel width, channel braiding patterns, grain size distribution trends, and stream …
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SAR interferometry analysis of surface processes in the Pamir – Tien Shan active orogens - emphasis on coseismic deformation and landslides
… methods and their application to tectonically active systems and related surface deformation. With 3 publications two case studies are presented: (1) The coseismic deformation related to the Nura earthquake (5th October 2008, magnitude Mw 6.6) at the eastern termination of the intramontane Alai …
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Fault-Controlled Damage and Permeability at the Brady Geothermal System, Nevada, U.S.A.
… production. Despite a general association with active faults, geothermal systems typically display heterogeneously distributed permeability that makes locating successful wells difficult. Faults are associated with complex distributions of secondary fractures, with variable attitude, fracture …
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Landslides and surface fault rupture from the Mw 7.8 2016 Kaikōura Earthquake
… that initiated failure. It was found that active faults form site conditions that are conducive to the initiation of large volume EILs. The presence of an active fault through the source area, and the dynamic component of near-fault, pulse-like ground motions were more important for …
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From Fault Dynamics to Seismic Hazard Assessment
… its related uncertainties, based on the study of active faults systems and dynamic modelling of the seismic cycle. I worked in particular on the probabilistic estimate of a fault‘s maximum magnitude earthquake and of its return period. Those parameters are indeed crucial to estimate seismic …
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Hyperbolic Property of Earthquake Networks
… density in large urban areas near major active faults (e.g., Tokyo, Istanbul, Los Angeles, San Francisco), the catastrophic earthquakes in Japan, Haiti and Indonesia (life loss over 500,000, economical damage over $US 100 billion), and recent earthquakes in the Midwestern US and other …
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The relationship between active faulting and fluvial geomorphology: a case study in the Gediz Graben, Turkey.
Identifying tectonically active faults and quantifying rates of movement is a key challenge in the Earth Sciences, in addition to this the interactions between active faulting and the landscape, specifically involving the fluvial network, is a relatively new area of study. Previous work has …
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INTEGRATING GEOPHYSICAL METHODS TO STUDY SUBDUCTION ZONE PROPERTIES, ACTIVE FAULTING IN A VOLCANIC FIELD, AND VOLCANO LANDSLIDE HAZARDS
… magnetics, and electromagnetics to study three actively deforming regions: 1) the Cascadia subduction zone deformation front in the Pacific NW of the United States, 2) the near surface of the Laguna del Maule volcanic field in the southern Andes of Chile, and 3) the edifice of Iliamna Volcano in …
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The role of long-term tectonic deformation on present day seismicity in the Caribbean and Central America
… we compare predicted fault types with known active faults and evaluate the style of predicted fault types with present-day earthquake focal mechanism data. We first create a 0.25$^{circ}$ x 0.25$^{circ}$ finite element grid that is comprised of block geometries defined from previous studies. …
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The Mechanics of Active Faulting and Mountain Building
… new constraints on the rheological properties of active faults, and to investigate the influence of fault rheology on mountain building. The first chapter studies the postseismic deformation following the 2003 Bam earthquake in south-eastern Iran, with the intention of probing the material …
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Identification of the physical controls on the deposition of Aptian and Albian deep water sands in the Bredasdorp Basin, South Africa
… input may have come from the west too. The faults that were active before and during the deposition of the Aptian-aged (13A) sands appear to have been the main control on sand distribution across the basin, guiding the sands from slope channels into basin floor fans and from shelf edge …
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