Publications
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Rainfall-soil moisture relations in landslide-prone areas of a tropical rain forest, Puerto Rico Rainfall-soil moisture relations in landslide-prone areas of a tropical rain forest, Puerto Rico
Soil moisture conditions are not well documented in steep, tropical landslide-prone terrain. In the 11,330 ha Caribbean National Forest (CNF) in northeastern Puerto Rico more than 170 landslides that occurred from one to approximately 60 years ago have been mapped. Most of these landslides are shallow, with failure depths of 0.5 ot 7 m, and are associated with periods of intense...
Authors
Matthew C. Larsen, Angel J. Torres-Sanchez
Liquefaction and foundation failure of Chevron oil and gasoline tanks at Moss Landing, California Liquefaction and foundation failure of Chevron oil and gasoline tanks at Moss Landing, California
Liquefaction of gray, coarse‐ to medium‐grained, esturine sand during the October 17, 1989 Loma Prieta (Ms=7.1) earthquake led to foundation failures of oil and tanks at the Chevron Marine Station at Moss Landing located about 25 km south‐southeast of the epicenter. Differential settlement of the foundations resulted in 1° to 6° of the tanks towards one another and an associated 2° to 7°
Authors
Martitia Tuttle, Patience Cowie, John Tinsley, Michael Benett, John Berrill
Preliminary velocity and resistivity models of the Loma Prieta Earthquake region Preliminary velocity and resistivity models of the Loma Prieta Earthquake region
A preliminary three-dimensional velocity model of the Loma Prieta epicentral region in the Santa Cruz Mountains of California has been derived using raypaths from aftershocks recorded by the U.S.G.S. seismic network. In addition, a magnetotelluric sounding profile was completed prior to the earthquake and a two-dimensional resistivity model computed. The velocity and resistivity models...
Authors
Donna Eberhart-Phillips, Victor F. Labson, William D. Stanley, Andrew J. Michael, Brian D. Rodriguez
Flank tectonics of Martian volcanoes Flank tectonics of Martian volcanoes
On the flanks of Olympus Mons is a series of terraces, concentrically distributed around the caldera. Their morphology and location suggest that they could be thrust faults caused by compressional failure of the cone. In an attempt to understand the mechanism of faulting and the possible influences of the interior structure of Olympus Mons, we have constructed a numerical model for...
Authors
Paul Thomas, Steven W. Squyres, M. H. Carr
On the rupture zone and effects of local geologic conditions on damages and ground motions for the Armenian earthquakes of December 7, 1988 On the rupture zone and effects of local geologic conditions on damages and ground motions for the Armenian earthquakes of December 7, 1988
No abstract available.
Authors
Roger D. Borcherdt, C. Langer, John R. Filson, D.W. Simpson, G. Glassmoyer, M. Andrews, E. Cranswick
Ground motion Ground motion
No abstract available.
Authors
Roger D. Borcherdt, N. C. Donovan, Mehmet Celebi, A. Shakal, M. Huang, M. Reichle, C. Ventura, T. Cao, R. Bherburne, M. Savage, Robert B. Darragh, C. Petersen, David Boore, W. B. Joyner, E. V. Leyendecker, P.C. Thenhaus, Kimberly W. Campo, Margaret G. Hopper, S.L. Hanson, S. T. Algermissen, David M. Perkins, Susan E. Hough, D. Simpson, A. Lerner-Lam, P.A. Friberg, R. Busby, L. Shengold, M. Tuttle, Edward H. Field, K.H. Jacob, J. Pacheco, C. Estabrook, M. Peterson, Douglas H. Johnson, Arthur D. Frankel
A suggested method for reporting a landslide A suggested method for reporting a landslide
The Landslide Report is a Suggested Method developed by the International Geotechnical Societies' UNESCO Working Party on World Landslide Inventory for reporting the position, date, type, geometry, volume and damage of significant landslides.
Authors
Robin Fell, W. Lacerda, D.M. Cruden, S.G. Evans, P. LaRochelle, Fernando Martinez, Lisandro Beltran, J. Jesenak, S. Novograd, E. Krauter, E. Slunga, G.A. Pilot, E.W. Brand, J. Farkas, R.K. Bhandari, V. Cotecchia, Franco Esu, H. Fujita, H. Nakamura, K. Sassa, W.H. Ting, Graham Salt, Nilmar Janbu, A.M. Nespak, Wang Gongxian, Zhang Zhuoyuan, R. Michelena, Mihai Popescu, Leif Viberg, C. Bonnard, J.N. Hutchinson, H.H. Einstein, R. L. Schuster, D. J. Varnes, Z.G. Ter-Martirosian, G.I. Ter-Stepanian, P. Anagnosti, M. Hashizume, Masayuki Watanabe
Suggested nomenclature for landslides Suggested nomenclature for landslides
The IAEG Commission on Landslides and other Mass Movements on Slopes has proposed English and French names for 19 identifiable features of slope movements and for 7 dimensions of those features. The Commission intends to publish this list in other languages and to supplement and revise it from time to time.
Authors
D.M. Cruden, S. Novograd, G.A. Pilot, E. Krauter, R.K. Bhandari, V. Cotecchia, H. Nakamura, C.O. Okagbue, Zhang Zhuoyuan, J.N. Hutchinson, D. J. Varnes, G.I. Ter-Stepanian
Lava flow surface textures: SIR-B radar image texture, field observations, and terrain measurements Lava flow surface textures: SIR-B radar image texture, field observations, and terrain measurements
Space Shuttle Imaging Radar (SIR-8) images, field observations, and small-scale (cm) terrain measurements are used to study lava flow surface textures related to emplacement processes of a single hawaiian lava flow. Although smooth pahoehoe textures are poorly characterized on the SIR-B data, rougher pahoehoe types and the a'a flow portion show image textures attributed to spatial...
Authors
Lisa R. Gaddis, Peter J. Mouginis-Mark, Joan N. Hayashi
Basal slip and mechanical anisotropy of biotite Basal slip and mechanical anisotropy of biotite
The basal slip systems of biotite and their mechanical expressions have been investigated by shortening single crystals oriented to maximize and minimize shear stresses on (001). Samples loaded at 45° to (001) exhibit gentle external rotations associated with dislocation glide. High‐angle kink bands in these samples, unlike those developed in micas loaded parallel to (001), are limited...
Authors
A. K. Kronenberg, Stephen H. Kirby, John C. Pinkston
Investigating climate change by digital analysis of blue-ice extent on satellite images of Antarctica Investigating climate change by digital analysis of blue-ice extent on satellite images of Antarctica
Landsat-5 Thematic Mapper (TM) and SPOT data collected two years apart from an identical area of Dronning (Queen) Maud Land, Antarctica, have been analyzed to detect variations in surface features that may signal climatic change, and to establish a technique that readily identifies such changes. We found that selective principal component analysis (Chavez and Kwarteng 1989), on band...
Authors
Olav Orheim, Baerbel K. Lucchitta
Hurricane impacts on the coastal environment Hurricane impacts on the coastal environment
In terms of insured losses, Hurricane Andrew is the most severe catastrophe in the Nation's history. Prior to the arrival of Andrew, the U.S. Geological Survey (USGS), in cooperation with the Louisiana Geological Survey (LGS), acquired an extensive body of information and data on the behavior and long-term erosion of Louisiana barrier islands. As a result, we have a clear understanding...
Authors
Abby Sallenger