A5006622353- Seismic Waves and Analysis
- earthquake and tectonic studies
- Seismic Imaging and Inversion Techniques
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Geophysics and Sensor Technology
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Seismic Performance and Analysis
- Geological formations and processes
- Geological Modeling and Analysis
- Geotechnical Engineering and Analysis
- Landslides and related hazards
- Hydraulic Fracturing and Reservoir Analysis
- Coastal and Marine Dynamics
- Aeolian processes and effects
- Ocean Waves and Remote Sensing
- Cryospheric studies and observations
- Botany and Geology in Latin America and Caribbean
- Geological Studies and Exploration
- Botany, Ecology, and Taxonomy Studies
- Geophysical Methods and Applications
- Air Quality Monitoring and Forecasting
- Calibration and Measurement Techniques
- Archaeology and Natural History
United States Geological Survey
1994-2021
Denver Federal Center
1986-2010
Institute of Geosciences and Earth Resources
2007
Research Article| October 01, 2013 VS30 and Spectral Response from Collocated Shallow, Active‐, Passive‐Source VS Data at 27 Sites in Puerto Rico Jack K. Odum; Odum U.S. Geological Survey, P.O. Box 25046, MS‐966, Denver, Colorado 80225‐0046 Search for other works by this author on: GSW Google Scholar William J. Stephenson; Stephenson Robert A. Williams; Williams Christa von Hillebrandt‐Andrade NOAA NWS CTWP, Residence 2a, 259 Alfonso Valdes, Mayaguez, 00681‐9017 Bulletin of the Seismological...
High‐resolution seismic reflection profiles at two different scales were acquired across the transpressional Santa Monica Fault of north Los Angeles as part an integrated hazard assessment fault. The data confirm location fault and related shallow faulting seen in a trench to deeper structures known from regional studies. shows series near‐vertical strike‐slip faults beneath topographic scarp inferred be caused by thrusting on Analysis disruption soil horizons indicates multiple earthquakes...
Research Article| July 01, 2010 Multisource, High-resolution Seismic-reflection Imaging of Meeman-Shelby Fault and a Possible Tectonic Model for Joiner Ridge–Manila High Stepover Structure in the Upper Mississippi Embayment Region Jack K. Odum; Odum Geologic Hazards Science Center U. S. Geological Survey Box 25046, MS 966 Denver Federal Denver, Colorado 80225 U.S.A. odum@usgs.gov (J. O.) wstephens@usgs.gov (W. J. S.) rawilliams@usgs.gov (R. A. W.) Search other works by this author on: GSW...
Of paramount importance to our ability assess seismic hazards in the New Madrid Seismic Zone is determining accurate estimates of magnitudes 1811-1812 events. Based on intensity determinations, moment for three largest earthquakes are estimated be between M 7.8 and 8.1. Earthquakes these large suggest coseismic fault rupture lengths excess 100 km each event, yet only clear case surface deformation occurred during February 7, 8.0 earthquake when uplift over a distance 32 along Reelfoot Fault...
We conducted active and passive seismic imaging investigations along a 5.6‐km‐long, east–west transect ending at the mapped trace of Wasatch fault in southern Utah Valley. Using two‐dimensional (2D) P ‐wave reflection data, we imaged basin deformation faulting to depth 1.4 km developed detailed interval velocity model for prestack migration 2D ground‐motion simulations. Passive‐source microtremor data acquired two sites resolve S velocities approximately 200 m/s surface about 900 m/s 160 m...
Research Article| November 01, 2010 Shallow subsurface structure of the Wasatch fault, Provo segment, Utah, from integrated compressional and shear-wave seismic reflection profiles with implications for fault development John H. McBride; McBride † 1Department Geological Sciences, Brigham Young University, P.O. Box 24606, Provo, Utah 84602, USA †E-mail: john_mcbride@byu.edu Search other works by this author on: GSW Google Scholar William J. Stephenson; Stephenson 2U. S. Survey, 25046, MS 966,...
Brief Report| October 01, 2013 Quaternary Extensional Growth Folding beneath Reno, Nevada, Imaged by Urban Seismic Profiling W. J. Stephenson; Stephenson U.S. Geological Survey, 1711 Illinois Street, Golden, Colorado 80401wstephens@usgs.gov Search for other works this author on: GSW Google Scholar R. N. Frary; Frary Noble Energy Inc., 100 Glenborough Dr #100, Houston, Texas 77067 Louie; Louie Nevada Seismological Laboratory, Department of Sciences and Engineering, Mackay School Earth College...
The main goal of this study is to compare different reflection methods used image subsurface structure within physical environments in western Nevada. With all the employed, primary fault imaging for structural information toward geothermal exploration and seismic hazard estimation. We use CHIRP (a swept‐frequency marine acquisition system), weight drop (an accelerated hammer source), two vibroseis systems characterize structure. focused our efforts Reno metropolitan area surrounding Pyramid...
In 2001, a rare swarm of small, shallow earthquakes beneath the city Spokane, Washington, caused ground shaking as well audible booms over five‐month period. Subsequent Interferometric Synthetic Aperture Radar (InSAR) data analysis revealed an area surface uplift in vicinity earthquake swarm. To investigate potential faults that may have both and topographic uplift, we collected ∼3 km high‐resolution seismic‐reflection profiles to image upper‐source region The two reveal complex...
Abstract The Walker Lane is a zone of distributed transtension where normal faults are overprinted by strike‐slip motion. We use two newly acquired, high‐resolution seismic reflection profiles and reprocessed Consortium for Continental Reflection Profiling (COCORP) deep crustal profile to assess the subsurface geometry Holocene‐active, transtensional Warm Springs Valley fault (WSVFZ) near Reno, Nevada, USA. Our multiscale observations extend 12 km depth suggest that WSVFZ more complex in...
Research Article| January 01, 1997 Slope Failures in Northern Vermont, USA FITZHUGH T. LEE; LEE Consultant 3712 31st Ave NW, Gig Harbor, WA 98332 Search for other works by this author on: GSW Google Scholar JACK K. ODUM; ODUM U.S. Geological Survey, P.O. Box 25046, MS-966, Denver, CO 80225 JOHN D. Battele Seattle Center, 4000 NE 41 Street, Seattle, 98105 Environmental & Engineering Geoscience (1997) III (2): 161–182. https://doi.org/10.2113/gseegeosci.III.2.161 Article history first online:...