Mark Reid
Mark Reid is a research hydrologist for California Volcano Observatory.
Science and Products
Filter Total Items: 36
Deciphering landslide behavior using large-scale flume experiments
Landslides can be triggered by a variety of hydrologic events and they can exhibit a wide range of movement dynamics. Effective prediction requires understanding these diverse behaviors. Precise evaluation in the field is difficult; as an alternative we performed a series of landslide initiation experiments in the large-scale, USGS debris-flow flume. We systematically investigated the effects of t
Authors
Mark E. Reid, Richard M. Iverson, Neal R. Iverson, Richard G. LaHusen, Dianne L. Brien, Matthew Logan
Assessing deep-seated landslide susceptibility using 3-D groundwater and slope-stability analyses, southwestern Seattle, Washington
In Seattle, Washington, deep-seated landslides on bluffs along Puget Sound have historically caused extensive damage to land and structures. These large failures are controlled by three-dimensional (3-D) variations in strength and pore-water pressures. We assess the slope stability of part of southwestern Seattle using a 3-D limit-equilibrium analysis coupled with a 3-D groundwater flow model. Our
Authors
Dianne L. Brien, Mark E. Reid
Ferguson rock slide buries California State Highway near Yosemite National Park
During spring 2006, talus from the toe area of a rock-block slide of about 800,000 m3 buried California State Highway 140, one of the main routes into heavily-visited Yosemite National Park, USA. Closure of the highway for 92 days caused business losses of about 4.8 million USD. The rock slide, composed of slate and phyllite, moved slowly downslope from April to June 2006, creating a fresh head sc
Authors
Edwin L. Harp, Mark E. Reid, Jonathan W. Godt, Jerome V. DeGraff, Alan J. Gallegos
Modeling 3-D slope stability of coastal bluffs using 3-D ground-water flow, Southwestern Seattle, Washington
Landslides are a common problem on coastal bluffs throughout the world. Along the coastal bluffs of the Puget Sound in Seattle, Washington, landslides range from small, shallow failures to large, deep-seated landslides. Landslides of all types can pose hazards to human lives and property, but deep-seated landslides are of significant concern because their large areal extent can cause extensive pro
Authors
Dianne L. Brien, Mark E. Reid
Rainfall and Seasonal Movement of the Weeks Creek Landslide, San Mateo County, California
Introduction
Many different types of landslide occur in the Santa Cruz Mountains of San Mateo County, Calif. (Brabb and Pampeyan, 1972); most slope movement is triggered by strong earthquakes, heavy rainfall, or shoreline erosion. In this area, shallow landslides of loose soil and rock, which may transform into debris flows, commonly occur during individual storms when rainfall exceeds a thresh
Authors
Gerald F. Wieczorek, Mark E. Reid, Walter Jodicke, Chris Pearson, Grant Wilcox
Assessing massive flank collapse at stratovolcanoes using 3-D slope stability analysis
Massive rock failures pose one of the greatest hazards at stratovolcanoes; more than 20,000 fatalities have resulted worldwide from historical volcano edifice collapses. Although numerous processes can destabilize an edifice, gravitational instability is strongly influenced by the interplay of topography, variable potential failure surfaces, and the three-dimensional (3-D) distributions of rock st
Authors
Mark E. Reid, Dianne Brien
Real-Time Monitoring of Active Landslides
Landslides threaten lives and property in every State in the Nation. To reduce the risk from active landslides, the U.S. Geological Survey (USGS) develops and uses real-time landslide monitoring systems. Monitoring can detect early indications of rapid, catastrophic movement. Up-to-the-minute or real-time monitoring provides immediate notification of landslide activity, potentially saving lives an
Authors
Mark E. Reid, Richard G. LaHusen, William L. Ellis
Debris-flow initiation experiments using diverse hydrologic triggers
Controlled debris-flow initiation experiments focused on three hydrologic conditions that can trigger slope failure: localized ground-water inflow; prolonged moderate-intensity rainfall; and high-intensity rainfall. Detailed monitoring of slope hydrology and deformation provided exceptionally complete data on conditions preceding and accompanying slope failure and debris-flow mobilization. Ground-
Authors
Mark E. Reid, Richard G. LaHusen, Richard M. Iverson
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. granular
Authors
Richard M. Iverson, Mark E. Reid, Richard G. Lahusen
Gravity-driven groundwater flow and slope failure potential: 2. Effects of slope morphology, material properties, and hydraulic heterogeneity
Hillslope morphology, material properties, and hydraulic heterogeneities influence the role of groundwater flow in provoking slope instability. We evaluate these influences quantitatively by employing the elastic effective stress model and Coulomb failure potential concept described in our companion paper (Iverson and Reid, this issue). Sensitivity analyses show that of four dimensionless quantiti
Authors
Mark E. Reid, Richard M. Iverson
Gravity-driven groundwater flow and slope failure potential: 1. Elastic effective-stress model
Hilly or mountainous topography influences gravity-driven groundwater flow and the consequent distribution of effective stress in shallow subsurface environments. Effective stress, in turn, influences the potential for slope failure. To evaluate these influences, we formulate a two-dimensional, steady state, poroelastic model. The governing equations incorporate groundwater effects as body forces,
Authors
Richard M. Iverson, Mark E. Reid
Summary of Geotechnical and Hydrologic Data Collected From May 1, 1990 through April 30, 1991, for the Alani-Paty Landslide, Manoa Valley, Honolulu, Hawaii
No abstract available.
Authors
Rex L. Baum, Mark E. Reid, Cynthia A. Wilburn, Jill D. Torikai
Science and Products
Filter Total Items: 36
Deciphering landslide behavior using large-scale flume experiments
Landslides can be triggered by a variety of hydrologic events and they can exhibit a wide range of movement dynamics. Effective prediction requires understanding these diverse behaviors. Precise evaluation in the field is difficult; as an alternative we performed a series of landslide initiation experiments in the large-scale, USGS debris-flow flume. We systematically investigated the effects of t
Authors
Mark E. Reid, Richard M. Iverson, Neal R. Iverson, Richard G. LaHusen, Dianne L. Brien, Matthew Logan
Assessing deep-seated landslide susceptibility using 3-D groundwater and slope-stability analyses, southwestern Seattle, Washington
In Seattle, Washington, deep-seated landslides on bluffs along Puget Sound have historically caused extensive damage to land and structures. These large failures are controlled by three-dimensional (3-D) variations in strength and pore-water pressures. We assess the slope stability of part of southwestern Seattle using a 3-D limit-equilibrium analysis coupled with a 3-D groundwater flow model. Our
Authors
Dianne L. Brien, Mark E. Reid
Ferguson rock slide buries California State Highway near Yosemite National Park
During spring 2006, talus from the toe area of a rock-block slide of about 800,000 m3 buried California State Highway 140, one of the main routes into heavily-visited Yosemite National Park, USA. Closure of the highway for 92 days caused business losses of about 4.8 million USD. The rock slide, composed of slate and phyllite, moved slowly downslope from April to June 2006, creating a fresh head sc
Authors
Edwin L. Harp, Mark E. Reid, Jonathan W. Godt, Jerome V. DeGraff, Alan J. Gallegos
Modeling 3-D slope stability of coastal bluffs using 3-D ground-water flow, Southwestern Seattle, Washington
Landslides are a common problem on coastal bluffs throughout the world. Along the coastal bluffs of the Puget Sound in Seattle, Washington, landslides range from small, shallow failures to large, deep-seated landslides. Landslides of all types can pose hazards to human lives and property, but deep-seated landslides are of significant concern because their large areal extent can cause extensive pro
Authors
Dianne L. Brien, Mark E. Reid
Rainfall and Seasonal Movement of the Weeks Creek Landslide, San Mateo County, California
Introduction
Many different types of landslide occur in the Santa Cruz Mountains of San Mateo County, Calif. (Brabb and Pampeyan, 1972); most slope movement is triggered by strong earthquakes, heavy rainfall, or shoreline erosion. In this area, shallow landslides of loose soil and rock, which may transform into debris flows, commonly occur during individual storms when rainfall exceeds a thresh
Authors
Gerald F. Wieczorek, Mark E. Reid, Walter Jodicke, Chris Pearson, Grant Wilcox
Assessing massive flank collapse at stratovolcanoes using 3-D slope stability analysis
Massive rock failures pose one of the greatest hazards at stratovolcanoes; more than 20,000 fatalities have resulted worldwide from historical volcano edifice collapses. Although numerous processes can destabilize an edifice, gravitational instability is strongly influenced by the interplay of topography, variable potential failure surfaces, and the three-dimensional (3-D) distributions of rock st
Authors
Mark E. Reid, Dianne Brien
Real-Time Monitoring of Active Landslides
Landslides threaten lives and property in every State in the Nation. To reduce the risk from active landslides, the U.S. Geological Survey (USGS) develops and uses real-time landslide monitoring systems. Monitoring can detect early indications of rapid, catastrophic movement. Up-to-the-minute or real-time monitoring provides immediate notification of landslide activity, potentially saving lives an
Authors
Mark E. Reid, Richard G. LaHusen, William L. Ellis
Debris-flow initiation experiments using diverse hydrologic triggers
Controlled debris-flow initiation experiments focused on three hydrologic conditions that can trigger slope failure: localized ground-water inflow; prolonged moderate-intensity rainfall; and high-intensity rainfall. Detailed monitoring of slope hydrology and deformation provided exceptionally complete data on conditions preceding and accompanying slope failure and debris-flow mobilization. Ground-
Authors
Mark E. Reid, Richard G. LaHusen, Richard M. Iverson
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. granular
Authors
Richard M. Iverson, Mark E. Reid, Richard G. Lahusen
Gravity-driven groundwater flow and slope failure potential: 2. Effects of slope morphology, material properties, and hydraulic heterogeneity
Hillslope morphology, material properties, and hydraulic heterogeneities influence the role of groundwater flow in provoking slope instability. We evaluate these influences quantitatively by employing the elastic effective stress model and Coulomb failure potential concept described in our companion paper (Iverson and Reid, this issue). Sensitivity analyses show that of four dimensionless quantiti
Authors
Mark E. Reid, Richard M. Iverson
Gravity-driven groundwater flow and slope failure potential: 1. Elastic effective-stress model
Hilly or mountainous topography influences gravity-driven groundwater flow and the consequent distribution of effective stress in shallow subsurface environments. Effective stress, in turn, influences the potential for slope failure. To evaluate these influences, we formulate a two-dimensional, steady state, poroelastic model. The governing equations incorporate groundwater effects as body forces,
Authors
Richard M. Iverson, Mark E. Reid
Summary of Geotechnical and Hydrologic Data Collected From May 1, 1990 through April 30, 1991, for the Alani-Paty Landslide, Manoa Valley, Honolulu, Hawaii
No abstract available.
Authors
Rex L. Baum, Mark E. Reid, Cynthia A. Wilburn, Jill D. Torikai