Publications
Filter Total Items: 2375
Description, origin, and implications of a newly identified Slumgullion landslide deposit, San Juan Mountains, southwestern Colorado Description, origin, and implications of a newly identified Slumgullion landslide deposit, San Juan Mountains, southwestern Colorado
No abstract available.
Authors
A.F. Chleborad
Differentiation of debris-flow and flash-flood deposits: implications for paleoflood investigations Differentiation of debris-flow and flash-flood deposits: implications for paleoflood investigations
Debris flows and flash floods are common geomorphic processes in the Colorado Rocky Mountain Front Range and foothills. Usually, debris flows and flash floods are associated with excess summer rainfall or snowmelt, in areas were unconsolidated surficial deposits are relatively thick and slopes are steep. In the Front Range and foothills, flash flooding is limited to areas below about...
Authors
Christopher F. Waythomas, Robert D. Jarrett
Mapping debris-flow hazard in Honolulu using a DEM Mapping debris-flow hazard in Honolulu using a DEM
A method for mapping hazard posed by debris flows has been developed and applied to an area near Honolulu, Hawaii. The method uses studies of past debris flows to characterize sites of initiation, volume at initiation, and volume-change behavior during flow. Digital simulations of debris flows based on these characteristics are then routed through a digital elevation model (DEM) to...
Authors
Stephen D. Ellen, Robert K. Mark
Submarine landslides: Selected studies in the U.S. Exclusive Economic Zone Submarine landslides: Selected studies in the U.S. Exclusive Economic Zone
No abstract available.
Authors
William C. Schwab, Homa J. Lee, David C. Twichell
Landslides caused by the Klamath Falls, Oregon, earthquakes of September 20, 1993 Landslides caused by the Klamath Falls, Oregon, earthquakes of September 20, 1993
The Klamath Falls earthquakes caused landslides throughout an area of about 420 sq km and as far as about 29 km from the epicenter, a distribution that is typical for magnitude 6 earthquakes (see graphs on following pages). Most of the landslides were rock falls or shallow, highly disrupted rock slides from roadcuts, quarries, and steep bluff faces. Such landslides are also among the...
Authors
D. K. Keefer, R. L. Schuster
A rainfall intensity-duration threshold for landslides in a humid- tropical environment, Puerto Rico A rainfall intensity-duration threshold for landslides in a humid- tropical environment, Puerto Rico
Landslides are triggered by factors such as heavy rainfall, seismic activity, and construction on hillslopes. The leading cause of landslides in Puerto Rico is intense and/or prolonged rainfall. A rainfall threshold for rainfall-triggered landsliding is delimited by 256 storms that occurred between 1959 and 1991 in the central mountains of Puerto Rico, where mean annual rainfall is close...
Authors
M. C. Larsen, A. Simon
Landslides triggered by Hurricane Hugo in eastern Puerto Rico, September 1989 Landslides triggered by Hurricane Hugo in eastern Puerto Rico, September 1989
On the morning of September 18, 1989, a category-four hurricane struck eastern Puerto Rico with a sustained wind speed in excess of 46 m/s. The 24-h rainfall accumulation from the hurricane ranged from 100 to 339 mm. Average rainfall intensities ranging from 34 to 39 mm/h were calculated for 4 and 6 h periods, respectively, at a rain gage equipped with satellite telemetry, and at an...
Authors
Matthew C. Larsen, Angel J. Torres-Sanchez
The National Landslide Information Center; data to reduce landslide damage The National Landslide Information Center; data to reduce landslide damage
Almost every day a landslide disasters occurs somewhere in the world. Nearly any time there is heavy rainfall, an earthquake, a volcanic eruption, strong wave action on a shoreline, or some ill-considered alteration of sloping land by humans, landslides occur. In a world of persistent and increasing construction on and occupation of hillslopes, canyons, and coastal bluffs, landslides are...
Authors
W. M. Brown
Analysis of geomagnetic secular variation during 1980-1985 and 1985- 1990, and geomagnetic models proposed for the 1991 revision of the International Geomagnetic Reference Field Analysis of geomagnetic secular variation during 1980-1985 and 1985- 1990, and geomagnetic models proposed for the 1991 revision of the International Geomagnetic Reference Field
The secular variation of the main geomagnetic field during the periods 1980-1985 and 1985-1990 was analyzed in terms of spherical harmonics up to the eighth degree and order. Data from worldwide magnetic observatories and the Navy's Project MAGNET aerial surveys were used. The resulting pair of secular-variation models was used to update the Definitive Geomagnetic Reference Field (DGRF)...
Authors
N.W. Peddie
The directory of the World Landslide Inventory The directory of the World Landslide Inventory
No abstract available.
Authors
William M. Brown, D.M. Cruden, Judith S. Denison
Digital elevation models for Slumgullion landslide, Hinsdale County, Colorado based on 1985 and 1990 aerial photography Digital elevation models for Slumgullion landslide, Hinsdale County, Colorado based on 1985 and 1990 aerial photography
No abstract available.
Authors
Philip S. Powers, David J. Varnes, William Z. Savage
Faulting, structural damage, liquefaction, and landslides from the Luzon, Philippines earthquake of July 16, 1990; slide set and bibliography Faulting, structural damage, liquefaction, and landslides from the Luzon, Philippines earthquake of July 16, 1990; slide set and bibliography
No abstract available.
Authors
Gerald F. Wieczorek, Christopher G. Newhall, Leif G. Wennerberg