Publications
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Reply to comment by Y. Ben-Zion on “The wrinkle-like slip pulse is not important in earthquake dynamics” Reply to comment by Y. Ben-Zion on “The wrinkle-like slip pulse is not important in earthquake dynamics”
No abstract available.
Authors
D.J. Andrews, Ruth Harris
The A.D. 1835 eruption of Volcán Cosigüina, Nicaragua: A guide for assessing local volcanic hazards The A.D. 1835 eruption of Volcán Cosigüina, Nicaragua: A guide for assessing local volcanic hazards
The January 1835 eruption of Volcán Cosigüina in northwestern Nicaragua was one of the largest and most explosive in Central America since Spanish colonization. We report on the results of reconnaissance stratigraphic studies and laboratory work aimed at better defining the distribution and character of deposits emplaced by the eruption as a means of developing a preliminary hazards...
Authors
William Scott, Cynthia Gardner, Graziella Devoli, Antonio Alvarez
Digital database of recently active traces of the Hayward Fault, California Digital database of recently active traces of the Hayward Fault, California
The purpose of this map is to show the location of and evidence for recent movement on active fault traces within the Hayward Fault Zone, California. The mapped traces represent the integration of the following three different types of data: (1) geomorphic expression, (2) creep (aseismic fault slip),and (3) trench exposures. This publication is a major revision of an earlier map...
Authors
James Lienkaemper
Maps of quaternary deposits and liquefaction susceptibility in the Central San Francisco Bay Region, California Maps of quaternary deposits and liquefaction susceptibility in the Central San Francisco Bay Region, California
This report presents a map and database of Quaternary deposits and liquefaction susceptibility for the urban core of the San Francisco Bay region. It supercedes the equivalent area of U.S. Geological Survey Open-File Report 00-444 (Knudsen and others, 2000), which covers the larger 9-county San Francisco Bay region. The report consists of (1) a spatial database, (2) two small-scale...
Authors
Robert C. Witter, Keith Knudsen, Janet Sowers, Carl Wentworth, Richard D. Koehler, Carolyn Randolph, Suzanna Brooks, Kathleen Gans
By
USGS science in Menlo Park -- a science strategy for the U.S. Geological Survey Menlo Park Science Center, 2005-2015 USGS science in Menlo Park -- a science strategy for the U.S. Geological Survey Menlo Park Science Center, 2005-2015
In the spring of 2004, the U.S. Geological Survey (USGS) Menlo Park Center Council commissioned an interdisciplinary working group to develop a forward-looking science strategy for the USGS Menlo Park Science Center in California (hereafter also referred to as "the Center"). The Center has been the flagship research center for the USGS in the western United States for more than 50 years...
Authors
Thomas Brocher, Michael Carr, David Halsing, David John, Victoria E. Langenheim, Margaret Mangan, Mark Marvin-DiPasquale, John Takekawa, Claire Tiedeman
By
Natural Hazards Mission Area, Water Resources Mission Area, Ecosystems Mission Area, Volcano Hazards Program, Earthquake Hazards Program, Volcano Science Center, Earthquake Science Center, Western Ecological Research Center (WERC), Alaska Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Confirmation and calibration of computer modeling of tsunamis produced by Augustine volcano, Alaska Confirmation and calibration of computer modeling of tsunamis produced by Augustine volcano, Alaska
Numerical modeling has been used to calculate the characteristics of a tsunami generated by a landslide into Cook Inlet from Augustine Volcano. The modeling predicts travel times of ca. 50-75 minutes to the nearest populated areas, and indicates that significant wave amplification occurs near Mt. Iliamna on the western side of Cook Inlet, and near the Nanwelak and the Homer-Anchor Point...
Authors
James Beget, Zygmunt Kowalik
Growth and collapse of Hawaiian volcanoes Growth and collapse of Hawaiian volcanoes
This special issue is an outgrowth of a session of the same name held at the 2003 Fall Meeting of the American Geophysical Union (AGU) in San Francisco. The session served dual purposes: to highlight recent advances in our understanding of the development and internal structure of Hawaiian volcanoes, and to recognize the important contributions of James Moore to this field of study.
Authors
Michelle Coombs, Barry W. Eakins, Peter Cervelli
Estimating landslide losses - preliminary results of a seven-State pilot project Estimating landslide losses - preliminary results of a seven-State pilot project
Introduction: In 2001, the U.S. Geological Survey Landslide Hazards Program provided funding for seven State geological surveys to report on the status of landslide investigation strategies in each of their States, and to suggest improved ways to approach the tracking of landslides, their effects, losses associated with the landslides, and hazard mitigation strategies. Each State was to...
Authors
Lynn Highland
Chemical and isotopic database of water and gas from hydrothermal systems with an emphasis for the western United States Chemical and isotopic database of water and gas from hydrothermal systems with an emphasis for the western United States
Chemical and isotope data accumulated by two USGS Projects (led by I. Barnes and R. Mariner) over a time period of about 40 years can now be found using a basic web search or through an image search (left). The data are primarily chemical and isotopic analyses of waters (thermal, mineral, or fresh) and associated gas (free and/or dissolved) collected from hot springs, mineral springs...
Authors
Robert Mariner, D.Y. Venezky, S. Hurwitz
Overview of the Microscopic Imager Investigation during Spirit's first 450 sols in Gusev crater Overview of the Microscopic Imager Investigation during Spirit's first 450 sols in Gusev crater
The Microscopic Imager (MI) on the Mars Exploration Rover Spirit has returned images of Mars with higher resolution than any previous camera system, allowing detailed petrographic and sedimentological studies of the rocks and soils at the Gusev landing site. Designed to simulate a geologist's hand lens, the MI is mounted on Spirit's instrument arm and can resolve objects 0.1 mm in size...
Authors
Kenneth Herkenhoff, Steve Squyres, Robert Anderson, Brent Archinal, Raymond Arvidson, Janet Barrett, Kris Becker, James F. Bell, Charles Budney, Nathalie Cabrol, Mary Chapman, Debbie Cook, Bethany Ehlmann, Jack Farmer, Brenda Franklin, Lisa Gaddis, Donna Galuszka, Patricia Garcia, Trent Hare, Elpitha Howington-Kraus, Jeffrey Johnson, Sarah Johnson, Kjartan M Kinch, Randolph Kirk, Ella M. Lee, Craig Leff, Mark Lemmon, Madsen B., Justin Maki, Kevin Mullins, Bonnie Redding, Lutz Richter, Mark Rosiek, Michael Sims, Laurence Soderblom, Nicole Spanovich, Richard Springer, Robert Sucharski, Tracie Sucharski, Robert Sullivan, James Torson, Albert Yen
Special issue: The changing shapes of active volcanoes: Recent results and advances in volcano geodesy Special issue: The changing shapes of active volcanoes: Recent results and advances in volcano geodesy
The 18 papers herein report on new geodetic data that offer valuable insights into eruptive activity and magma transport; they present new models and modeling strategies that have the potential to greatly increase understanding of magmatic, hydrothermal, and volcano-tectonic processes; and they describe innovative techniques for collecting geodetic measurements from remote, poorly...