Publications
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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
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
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
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
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
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
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
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
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
Depositional processes in large-scale debris-flow experiments Depositional processes in large-scale debris-flow experiments
This study examines the depositional process and characteristics of deposits of large‐scale experimental debris flows (to 15 m3) composed of mixtures of gravel (to 32 mm), sand, and mud. The experiments were performed using a 95‐m‐long, 2‐m‐wide debris‐flow flume that slopes 31°. Following release, experimental debris flows invariably developed numerous shallow (∼ 10 cm deep) surges...
Authors
J. J. Major