Publications
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Preliminary analysis of landslides triggered by the January 17, 1994, Northridge earthquake in the Santa Susana quadrangle, California Preliminary analysis of landslides triggered by the January 17, 1994, Northridge earthquake in the Santa Susana quadrangle, California
No abstract available.
Authors
Mario Parise, R.W. Jibson
Regional landslide-hazard evaluation using landslide slopes, Western Wasatch County, Utah Regional landslide-hazard evaluation using landslide slopes, Western Wasatch County, Utah
Landsliding has historically been one of the most damaging geologic hazards in western Wasatch County, Utah. Accordingly, we mapped and analyzed landslides (slumps and debris slides) in the area to provide an empirical basis for regional landslide-hazard evaluation. The 336 landslides in the 250-sq-mi (650-km2) area involve 20 geologic units, including Mississippian- to Quaternary-aged...
Authors
M.D. Hylland, Mark Lowe
The 1995 revision of the joint US/UK geomagnetic field models. II: Main field The 1995 revision of the joint US/UK geomagnetic field models. II: Main field
This paper presents the 1995 main-field revision of the World Magnetic Model (WMM-95). It is based on Project MAGNET high-level (??? 15,000 ft.) vector aeromagnetic survey data collected between 1988 and 1994 and on scalar total intensity data collected by the Polar Orbiting Geomagnetic Survey (POGS) satellite during the period 1991 through 1993. The spherical harmonic model produced...
Authors
J.M. Quinn, R.J. Coleman, S. Macmillan, D.R. Barraclough
Preliminary maps showing rainfall thresholds for debris-flow activity, San Francisco Bay region, California Preliminary maps showing rainfall thresholds for debris-flow activity, San Francisco Bay region, California
No abstract available.
Authors
Raymond C. Wilson, Angela S. Jayko
Landslides triggered by the April 1997, tropical storms in Pohnpei, Federated States of Micronesia Landslides triggered by the April 1997, tropical storms in Pohnpei, Federated States of Micronesia
No abstract available.
Authors
E. L. Harp, W. Z. Savage
Taking the Earth's pulse Taking the Earth's pulse
During the past 35 years, scientists have developed a vast network of seismometers that record earthquakes, volcanic eruptions, and nuclear explosions throughout the world. Seismographic data support disaster response, scientific research, and global security. With this network, the United States maintains world leadership in monitoring the greatest natural and technological events that...
Authors
Robert L. Woodward, Harly M. Benz, William M. Brown
Debris-flow mobilization from landslides Debris-flow mobilization from landslides
Field observations, laboratory experiments, and theoretical analyses indicate that landslides mobilize to form debris flows by three processes: (a) widespread Coulomb failure within a sloping soil, rock, or sediment mass, (b) partial or complete liquefaction of the mass by high pore-fluid pressures, and (c) conversion of landslide translational energy to internal vibrational energy (i.e...
Authors
Richard M. Iverson, Mark E. Reid, Richard G. Lahusen
Results of site investigation and instrumentation of the Keno Gulch landslide/debris-flow source area, Aspen, Colorado Results of site investigation and instrumentation of the Keno Gulch landslide/debris-flow source area, Aspen, Colorado
No abstract available.
Authors
A.F. Chleborad, W. L. Ellis, D.F. Kibler
The 1995 revision of the joint US/UK geomagnetic field models - I. Secular variation The 1995 revision of the joint US/UK geomagnetic field models - I. Secular variation
We present the methods used to derive mathematical models of global secular variation of the main geomagnetic field for the period 1985 to 2000. These secular-variation models are used in the construction of the candidate US/UK models for the Definitive Geomagnetic Reference Field at 1990, the International Geomagnetic Reference Field for 1995 to 2000, and the World Magnetic Model for...
Authors
S. Macmillan, D.R. Barraclough, J.M. Quinn, R.J. Coleman
Debris-flow hazards in the United States Debris-flow hazards in the United States
No abstract available.
Authors
Lynn Highland, Stephenson D. Ellen, Sarah B. Christian, William M. Brown
Land-based high-resolution seismic-reflection surveys of seven sites in Duval and St. Johns Counties, northeastern Florida Land-based high-resolution seismic-reflection surveys of seven sites in Duval and St. Johns Counties, northeastern Florida
No abstract available.
Authors
J. K. Odum, W. J. Stephenson, R. A. Williams, D. M. Worley, D. J. Toth, R. M. Spechler, Thomas L. Pratt
Digital compilation of landslide overview map of the conterminous United States Digital compilation of landslide overview map of the conterminous United States
This dataset consists of polygons enclosing areas of landslide incidence and susceptibility for the conterminous United States.
Authors
Water Resources Division U.S. Geological Survey