Publications
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Evaluation of CAMEL - comprehensive areal model of earthquake-induced landslides Evaluation of CAMEL - comprehensive areal model of earthquake-induced landslides
A new comprehensive areal model of earthquake-induced landslides (CAMEL) has been developed to assist in planning decisions related to disaster risk reduction. CAMEL provides an integrated framework for modeling all types of earthquake-induced landslides using fuzzy logic systems and geographic information systems. CAMEL is designed to facilitate quantitative and qualitative...
Authors
S.B. Miles, D. K. Keefer
Mapping of hazard from rainfall-triggered landslides in developing countries: Examples from Honduras and Micronesia Mapping of hazard from rainfall-triggered landslides in developing countries: Examples from Honduras and Micronesia
Loss of life and property caused by landslides triggered by extreme rainfall events demonstrates the need for landslide-hazard assessment in developing countries where recovery from such events often exceeds the country's resources. Mapping landslide hazards in developing countries where the need for landslide-hazard mitigation is great but the resources are few is a challenging, but not
Authors
E. L. Harp, M.E. Reid, J.P. McKenna, J. A. Michael
Test of a method to calculate near-bank velocity and boundary shear stress Test of a method to calculate near-bank velocity and boundary shear stress
No abstract available.
Authors
Jason W. Kean, Roger A. Kuhnle, J. Dungan Smith, Carlos V. Alonso, Eddy J. Langendoen
Elements of an improved model of debris-flow motion Elements of an improved model of debris-flow motion
A new depth-averaged model of debris-flow motion describes simultaneous evolution of flow velocity and depth, solid and fluid volume fractions, and pore-fluid pressure. Non-hydrostatic pore-fluid pressure is produced by dilatancy, a state-dependent property that links the depth-averaged shear rate and volumetric strain rate of the granular phase. Pore-pressure changes caused by shearing...
Authors
R.M. Iverson
Size distributions and failure initiation of submarine and subaerial landslides Size distributions and failure initiation of submarine and subaerial landslides
Landslides are often viewed together with other natural hazards, such as earthquakes and fires, as phenomena whose size distribution obeys an inverse power law. Inverse power law distributions are the result of additive avalanche processes, in which the final size cannot be predicted at the onset of the disturbance. Volume and area distributions of submarine landslides along the U.S...
Authors
Uri S. ten Brink, R. Barkan, B.D. Andrews, J.D. Chaytor
Morphology of late Quaternary submarine landslides along the U.S. Atlantic continental margin Morphology of late Quaternary submarine landslides along the U.S. Atlantic continental margin
The nearly complete coverage of the U.S. Atlantic continental slope and rise by multibeam bathymetry and backscatter imagery provides an opportunity to reevaluate the distribution of submarine landslides along the margin and reassess the controls on their formation. Landslides can be divided into two categories based on their source areas: those sourced in submarine canyons and those...
Authors
D.C. Twichell, J.D. Chaytor, Uri S. ten Brink, B. Buczkowski
Geomagnetic observations on tristan da cunha, south atlantic ocean Geomagnetic observations on tristan da cunha, south atlantic ocean
Few geomagnetic ground observations exist of the Earth's strongest core field anomaly, the South Atlantic Anomaly (SAA). The geomagnetic repeat station on the island Tristan da Cunha, located half-way between South Africa and South America at 37?? 05' S, 12?? 18' W, is therefore of crucial importance. We have conducted several sets of repeat station measurements during magnetically quiet
Authors
J. Matzka, N. Olsen, C.F. Maule, L.W. Pedersen, A.M. Berarducci, S. Macmillan
New research and tools lead to improved earthquake alerting protocols New research and tools lead to improved earthquake alerting protocols
What’s the best way to get alerted about the occurrence and potential impact of an earthquake? The answer to that question has changed dramatically of late, in part due to improvements in earthquake science, and in part by the implementation of new research in the delivery of earthquake information
Authors
David J. Wald
The increasing wildfire and post-fire debris-flow threat in western USA, and implications for consequences of climate change The increasing wildfire and post-fire debris-flow threat in western USA, and implications for consequences of climate change
In southern California and the intermountain west of the USA, debris flows generated from recently-burned basins pose significant hazards. Increases in the frequency and size of wildfires throughout the western USA can be attributed to increases in the number of fire ignitions, fire suppression practices, and climatic influences. Increased urbanization throughout the western USA...
Authors
Susan H. Cannon, Jerry DeGraff
Landslide movement in southwest Colorado triggered by atmospheric tides Landslide movement in southwest Colorado triggered by atmospheric tides
Landslides are among the most hazardous of geological processes, causing thousands of casualties and damage on the order of billions of dollars annually. The movement of most landslides occurs along a discrete shear surface, and is triggered by a reduction in the frictional strength of the surface. Infiltration of water into the landslide from rainfall and snowmelt and ground motion from
Authors
W.H. Schulz, J. W. Kean, G. Wang
Probabilistic estimation of numbers and costs of future landslides in the San Francisco Bay region Probabilistic estimation of numbers and costs of future landslides in the San Francisco Bay region
We used historical records of damaging landslides triggered by rainstorms and a newly developed Probabilistic Landslide Assessment Cost Estimation System (PLACES) to estimate the numbers and direct costs of future landslides in the 10-county San Francisco Bay region. Historical records of damaging landslides in the region are incomplete. Therefore, our estimates of numbers and costs of...
Authors
R. A. Crovelli, J. A. Coe
Moderate rates of late Quaternary slip along the northwestern margin of the Basin and Range Province, Surprise Valley fault, northeastern California Moderate rates of late Quaternary slip along the northwestern margin of the Basin and Range Province, Surprise Valley fault, northeastern California
The 86-km-long Surprise Valley normal fault forms part of the active northwestern margin of the Basin and Range province in northeastern California. We use trench mapping and radiocarbon, luminescence, and tephra dating to estimate displacements and timing of the past five surface-rupturing earthquakes on the central part of the fault near Cedarville. A Bayesian OxCal analysis of timing
Authors
Stephen F. Personius, Anthony J. Crone, Michael N. Machette, Shannon Mahan, David J. Lidke