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Geotechnical properties for landslide-prone Seattle; area glacial deposits

No abstract available.
Authors
William Z. Savage, Meghan M. Morrissey, Rex L. Baum

Preliminary method for anticipating the occurrence of precipitation-induced landslides in Seattle, Washington

Analysis of precipitation data associated with historical landslide events in Seattle has resulted in the identification of precipitation thresholds for the initiation of landslides. Also, an air-temperature index for multiple landslide events is identified, and in conjunction with the precipitation thresholds, is used to develop a method for anticipating the occurrence of landslides during the De
Authors
Alan F. Chleborad

Assessment of landslide hazards in Kaluanui and Maakua gulches, Oahu, Hawaii, following the 9 May 1999 Sacred Falls landslide

One of the injured hikers later died of injuries received in the landslide. Governor Ben Cayetano of Hawaii ordered that the park be closed due to concern about continuing landslide hazard near the falls. Subsequently, Bill Meyer, District Chief for the U.S. Geological Survey (USGS) Water Resources Division in Honolulu contacted Tim Johns, Chair of the Board of Land and Natural Resources of the Ha
Authors
R. W. Jibson, R.L. Baum

Evaluation of landslide hazards with ground-penetrating radar, Lake Michigan coast

Ground-penetrating radar (GPR) and boreholes were used to investigate a landslide-prone bluff at Sleeping Bear Dunes National Lakeshore on the northeastern coast of Lake Michigan. Based on borehole observations, sediment underlying the area is homogeneous, consisting of well-sorted, medium to coarse sand. GPR penetrated up to 20 m deep in these sediments, revealing the late Quaternary stratigraphy
Authors
Walter A. Barnhardt, Bruce E. Jaffe, Robert Kayen

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

Rock-fall potential in the Yosemite Valley, California

We used two methods of estimating rock-fall potential in the Yosemite Valley, California based on (1) physical evidence of previous rock-fall travel, in which the potential extends to the base of the talus, and (2) theoretical potential energy considerations, in which the potential can extend beyond the base of the talus, herein referred to as the rock-fall shadow. Rock falls in the valley commonl
Authors
Gerald F. Wieczorek, Meghan M. Morrissey, Giulio Iovine, Jonathan Godt