Preliminary Image Map of the 2007 Grass Valley Fire Perimeter, Lake Arrowhead Quadrangle, San Bernardino County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1045
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Buckweed Fire Perimeter, Sleepy Valley Quadrangle, Los Angeles County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1073
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Poomacha Fire Perimeter, Vail Lake Quadrangle, Riverside and San Diego Counties, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1078
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Witch Fire Perimeter, Escondido Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1037
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Ammo Fire Perimeter, San Onofre Bluff Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1068
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Harris Fire Perimeter, Barrett Lake Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1030
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Preliminary Image Map of the 2007 Harris Fire Perimeter, Jamul Mountains Quadrangle, San Diego County, California
Perry S. Clark, Wendy S. Scratch, Gaylord W. Bias, Gregory B. Stander, Jenne L. Sexton, Bridgette J. Krawczak
2008, Open-File Report 2008-1043
In the fall of 2007, wildfires burned out of control in southern California. The extent of these fires encompassed large geographic areas that included a variety of landscapes from urban to wilderness. The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) is currently (2008) developing a quadrangle-based 1:24,000-scale image...
Calculation of the rate of M≥6.5 earthquakes for California and adjacent portions of Nevada and Mexico
Arthur Frankel, Charles Mueller
2008, Open-File Report 2008-1112
One of the key issues in the development of an earthquake recurrence model for California and adjacent portions of Nevada and Mexico is the comparison of the predicted rates of earthquakes with the observed rates. Therefore, it is important to make an accurate determination of the observed rate of M>6.5...
Characterization of Northern Gulf of Mexico Deepwater Hard Bottom Communities with Emphasis on Lophelia Coral - Lophelia Reef Megafaunal Community Structure, Biotopes, Genetics, Microbial Ecology, and Geology (2004–2006)
Kenneth J. Sulak, Michael T. Randall, Kirsten E. Luke, April D. Norem, Jana M. Miller, editor(s)
2008, Open-File Report 2008-1148
...
Pesticides in air and rainwater in the midcontinental United States, 1995: Methods and data
Michael S. Majewski, William T. Foreman, Richard H. Coupe, Donald A. Goolsby, Frank W. Wiebe
2008, Open-File Report 2007-1369
Weekly composite high-volume air and wet-only deposition samples were collected from April through September 1995 at paired urban and agricultural areas in Mississippi, Iowa, and Minnesota, and at a background site in Michigan's Upper Peninsula. This report describes the methods used to collect, analyze, and quality assure the samples, and...
Empirical estimation of regional time variation in seismicity rates
Karen R. Felzer
2008, Open-File Report 2007-1437-M
No abstract available. ...
Conditional, time-dependent probabilities for segmented Type-A faults in the WGCEP UCERF 2
Edward H. Field, Vipin Gupta
2008, Open-File Report 2007-1437-N
This appendix presents elastic-rebound-theory (ERT) motivated time-dependent probabilities, conditioned on the date of last earthquake, for the segmented type-A fault models of the 2007 Working Group on California Earthquake Probabilities (WGCEP). These probabilities are included as one option in the WGCEP?s Uniform California Earthquake Rupture Forecast 2 (UCERF 2), with...
A-priori rupture models for Northern California Type-A faults
Chris J. Wills, Ray J. Weldon II, Edward H. Field
2008, Open-File Report 2007-1437-K
This appendix describes how a-priori rupture models were developed for the northern California Type-A faults. As described in the main body of this report, and in Appendix G, “a-priori” models represent an initial estimate of the rate of single and multi-segment surface ruptures on each fault. Whether or not a...
Cascadia Subduction Zone
Arthur D. Frankel, Mark D. Petersen
2008, Open-File Report 2007-1437-L
The geometry and recurrence times of large earthquakes associated with the Cascadia Subduction Zone (CSZ) were discussed and debated at a March 28-29, 2006 Pacific Northwest workshop for the USGS National Seismic Hazard Maps. The CSZ is modeled from Cape Mendocino in California to Vancouver Island in British Columbia. We include...
Paleoseismic Investigations of the Walnut Site on the San Jacinto Fault
T. E. Fumal, K.J. Kendrick
2008, Open-File Report 2007-1437-O
The Walnut paleoseismic site is located along the northern San Jacinto fault about 3 km southeast of the San Bernardino, California city center (Figures 1, 2). More than 340 meters of trenches were excavated across the fault zone at this site as part of an Alquist-Priolo fault study (Figure 3)....
Compilation of surface creep on California faults and comparison of WGCEP 2007 deformation model to Pacific-North American plate Mmtion
Beth A. Wisely, David A. Schmidt, Ray J. Weldon II
2008, Open-File Report 2007-1437-P
This Appendix contains 3 sections that 1) documents published observations of surface creep on California faults, 2) constructs line integrals across the WG-07 deformation model to compare to the Pacific - North America plate motion, and 3) constructs strain tensors of volumes across the WG-07 deformation model to compare to...
Monte Carlo method for determining earthquake recurrence parameters from short paleoseismic catalogs: Example calculations for California
Tom Parsons
2008, Open-File Report 2007-1437-C
Paleoearthquake observations often lack enough events at a given site to directly define a probability density function (PDF) for earthquake recurrence. Sites with fewer than 10-15 intervals do not provide enough information to reliably determine the shape of the PDF using standard maximum-likelihood techniques [e.g., Ellsworth et al., 1999]. In...
Calculating California seismicity rates
Karen R. Felzer
2008, Open-File Report 2007-1437-I
Empirically the rate of earthquakes = magnitude M is well fit by the Gutenberg-Richter relationship, logN=a-bM (1) where N is the number of earthquakes = M over a given time period, a is the number of M = 0 earthquakes over the same period, and b is a parameter that...
WGCEP historical California earthquake catalog
Karen R. Felzer, Tianqing Cao
2008, Open-File Report 2007-1437-H
This appendix provides an earthquake catalog for California and the surrounding area. Our goal is to provide a listing for all known M > 5.5 earthquakes that occurred from 1850-1932 and all known M > 4.0 earthquakes that occurred from 1932-2006 within the region of 31.0 to 43.0 degrees North...
Spatial seismicity rates and maximum magnitudes for background earthquakes
Mark D. Petersen, Charles S. Mueller, Arthur D. Frankel, Yuehua Zeng
2008, Open-File Report 2007-1437-J
The background seismicity model is included to account for M 5.0 - 6.5 earthquakes on faults and for random M 5.0 ? 7.0 earthquakes that do not occur on faults included in the model (as in earlier models of Frankel et al., 1996, 2002 and Petersen et al., 1996). We...
Earthquake Rate Model 2 of the 2007 working group for California earthquake probabilities, magnitude-area relationships
Ross S. Stein
2008, Open-File Report 2007-1437-D
The Working Group for California Earthquake Probabilities must transform fault lengths and their slip rates into earthquake moment-magnitudes. First, the down-dip coseismic fault dimension, W, must be inferred. We have chosen the Nazareth and Hauksson (2004) method, which uses the depth above which 99% of the background seismicity occurs to...
Sidescan-sonar imagery and surficial geologic interpretations of the sea floor in central Rhode Island Sound
K.Y. McMullen, L.J. Poppe, J. F. Denny, T.A. Haupt, J.M. Crocker
2008, Open-File Report 2007-1366
The U.S. Geological Survey (USGS) has been working with the National Oceanic and Atmospheric Administration (NOAA) to interpret the surficial geology of areas along the northeastern coast of the United States. During 2004, the NOAA Ship RUDE conducted Hydrographic Survey H11321 in Rhode Island Sound. This sidescan-sonar and bathymetry survey...
California fault parameters for the National Seismic Hazard Maps and Working Group on California Earthquake Probabilities 2007
Chris J. Wills, Ray J. Weldon II, W. A. Bryant
2008, Open-File Report 2007-1437-A
This report describes development of fault parameters for the 2007 update of the National Seismic Hazard Maps and the Working Group on California Earthquake Probabilities (WGCEP, 2007). These reference parameters are contained within a database intended to be a source of values for use by scientists interested in producing either...
Summary of geologic data and development of A Priori Rupture Models for the Elsinore, San Jacinto, and Garlock faults
Timothy E. Dawson, Tom K. Rockwell, Ray J. Weldon II, Chris J. Wills
2008, Open-File Report 2007-1437-F
This appendix to the WGCEP Earthquake Rate Model 2 summarizes geologic data and documents the development of the rupture models for the Elsinore, San Jacinto, and Garlock faults. For the summary of available geologic data, the documentation is organized by fault and fault segment and includes a summary of slip...
Recurrence interval and event age data for Type A faults
Timothy E. Dawson, Ray J. Weldon II, Glenn P. Biasi
2008, Open-File Report 2007-1437-B
This appendix summarizes available recurrence interval, event age, and timing of most recent event data for Type A faults considered in the Earthquake Rate Model 2 (ERM 2) and used in the ERM 2 Appendix C analysis as well as Appendix N (time-dependent probabilities). These data have been compiled into...
