Publications
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The Sidebar Computer Program, a seismic-shaking intensity meter: users' manual and software description The Sidebar Computer Program, a seismic-shaking intensity meter: users' manual and software description
The SideBar computer program provides a visual display of seismic shaking intensity as recorded at one specific seismograph. This software allows a user to tap into the seismic data recorded on that specific seismograph and to display the overall level of shaking at the single location where that seismograph resides (usually the same place the user is). From this shaking level, SideBar...
Authors
John R. Evans
Major and catastrophic storms and floods in Texas: 215 major and 41 catastrophic events from 1953 to September 1, 2002 Major and catastrophic storms and floods in Texas: 215 major and 41 catastrophic events from 1953 to September 1, 2002
Many Texas storms represent some of the largest storms in the world. Flooding from large storms has affected Texas throughout its history, causing many deaths and much economic loss and hardship. Floods occur regularly in Texas, and destructive floods occur somewhere in the State every year. Many of these floods are destructive because they often occur in areas where extreme flooding had...
Authors
Raymond M. Slade, John M. Patton
Additional information for “TREMOR: A Wireless, MEMS Accelerograph for Dense Arrays” (Evans et al., 2003) Additional information for “TREMOR: A Wireless, MEMS Accelerograph for Dense Arrays” (Evans et al., 2003)
The length of Evans et al. (2003) necessitated transfer of several less germane sections to this alternate forum to meet that venues needs. These sections include a description of the development of Figure 1, the plot of spatial variability so critical to the argument for dense arrays of strong-motion instruments; the description of the rapid, integer, computational method for PGV used...
Authors
John R. Evans, Robert H. Hamstra, Paul Spudich, Christoph Kundig, Patrick Camina, John A. Rogers
An Account of Preliminary Landslide Damage and Losses Resulting from the February 28, 2001, Nisqually, Washington, Earthquake An Account of Preliminary Landslide Damage and Losses Resulting from the February 28, 2001, Nisqually, Washington, Earthquake
The February 28, 2001, Nisqually, Washington, earthquake (Mw = 6.8) damaged an area of the northwestern United States that previously experienced two major historical earthquakes, in 1949 and in 1965. Preliminary estimates of direct monetary losses from damage due to earthquake-induced landslides is approximately $34.3 million. However, this figure does not include costs from damages to...
Authors
Lynn M. Highland
What Became of the Water on Mars? What Became of the Water on Mars?
Focuses on several exploratory missions to the planet Mars to investigate the role of water within the planet. Facts about Mars that were gathered from two National Aeronautics and Space Administration orbiters, the Mars Global Surveyor and Mars Odyssey; Features of Mars that are similar with the planet Earth; Factors that contribute to the possible existence of water in Mars; Background...
Authors
M. H. Carr
Erratum: Empirical evidence for site coefficients in building code provisions Erratum: Empirical evidence for site coefficients in building code provisions
No abstract available.
Authors
Roger D. Borcherdt
A compendium of P- and S-wave velocities from surface-to-borehole logging; summary and reanalysis of previously published data and analysis of unpublished data A compendium of P- and S-wave velocities from surface-to-borehole logging; summary and reanalysis of previously published data and analysis of unpublished data
For over 28 years, the U.S. Geological Survey (USGS) has been acquiring seismic velocity and geologic data at a number of locations in California, many of which were chosen because strong ground motions from earthquakes were recorded at the sites. The method for all measurements involves picking first arrivals of P- and S-waves from a surface source recorded at various depths in a...
Authors
David M. Boore
Wide-angle seismic recording from the 2002 Georgia Basin Geohazards Initiative, northwestern Washington and British Columbia Wide-angle seismic recording from the 2002 Georgia Basin Geohazards Initiative, northwestern Washington and British Columbia
This report describes the acquisition and processing of shallow-crustal wide-angle seismicreflection and refraction data obtained during a collaborative study in the Georgia Strait, western Washington and southwestern British Columbia. The study, the 2002 Georgia Strait Geohazards Initiative, was conducted in May 2002 by the Pacific Geoscience Centre, the U.S. Geological Survey, and the...
Authors
Thomas M. Brocher, Thomas L. Pratt, George D. Spence, Michael Riedel, Roy D. Hyndman
Bacterial contamination at Huntington Beach, California — Is it from a local offshore wastewater outfall? Bacterial contamination at Huntington Beach, California — Is it from a local offshore wastewater outfall?
During the summers of 1999 and 2000, beaches at Huntington Beach, California, were repeatedly closed to swimming because of high bacteria levels in the surf zone. The city’s beaches are a major recreational and commercial resource, normally attracting millions of visitors each summer. One possible source of the bacterial contamination was the Orange County Sanitation District’s sewage...
Authors
Jingping Xu, Marlene Noble, Leslie Rosenfeld, John Largier, Peter Hamilton, Burt Jones, James W. Hendley, Peter H. Stauffer
The plan to coordinate NEHRP post-earthquake investigations The plan to coordinate NEHRP post-earthquake investigations
This is the plan to coordinate domestic and foreign post-earthquake investigations supported by the National Earthquake Hazards Reduction Program (NEHRP). The plan addresses coordination of both the NEHRP agencies—Federal Emergency Management Agency (FEMA), National Institute of Standards and Technology (NIST), National Science Foundation (NSF), and U. S. Geological Survey (USGS)—and...
Authors
Thomas L. Holzer, Roger D. Borcherdt, Craig D. Comartin, Robert D. Hanson, Charles R. Scawthorn, Kathleen Tierney, T. Leslie Youd
Mars Digital Image Model (MDIM) 2.1 control network Mars Digital Image Model (MDIM) 2.1 control network
Positional control for MDIM 2.1 comes from a new geodetic/photogrammetric solution of the global Mars Mariner 9 and Viking image control network. The details of this network solution are described here. This network incorporates 1,054 Mariner 9 and 5,317 Viking Orbiter images. Accuracy of the new solution is improved primarily as the result of constraining all 37,652 control points to...
Authors
Brent A. Archinal, Randolph L. Kirk, T. C. Duxbury, Ella M. Lee, Robert M. Sucharski, Debbie Cook
Hydrothermal alteration at the Lonar Lake impact structure, India: Implications for impact cratering on Mars Hydrothermal alteration at the Lonar Lake impact structure, India: Implications for impact cratering on Mars
The 50,000 year old, 1.8 km diameter Lonar crater is one of only two known terrestrial craters to be emplaced in basaltic target rock (the 65 million year old Deccan Traps). The composition of the Lonar basalts is similar to martian basaltic meteorites, which establishes Lonar as an excellent analogue for similarly sized craters on the surface of Mars. Samples from cores drilled into the...
Authors
Justin Hagerty, Horton E. Newsom