Publications
Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
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Patterns of bull trout Salvelinus confluentus demography, life history, abundance, and trends in the North Fork Lewis River— 2023 Annual report Patterns of bull trout Salvelinus confluentus demography, life history, abundance, and trends in the North Fork Lewis River— 2023 Annual report
No abstract available.
Authors
Robert Al-Chokhachy, Jeremiah Doyle, Jason Shappart, Brice Adams
Why do seismic hazard models worldwide appear to overpredict historical intensity observations? Why do seismic hazard models worldwide appear to overpredict historical intensity observations?
Probabilistic seismic hazard assessments (PSHAs) provide the scientific basis for building codes to reduce damage from earthquakes. Despite their substantial impact, little is known about how well PSHA predicts actual shaking. Recent PSHA for California, Japan, Italy, Nepal, and France appear to consistently overpredict historically observed earthquake shaking intensities. Numerical...
Authors
Leah Marschall Salditch, Molly M. Gallahue, Seth Stein, James S. Neely, Norman A. Abrahamson, Susan E. Hough
Evaluation of chronic effects of potassium chloride and nickel on survival, growth, and reproduction of a unionid mussel (Lampsilis siliquoidea) Evaluation of chronic effects of potassium chloride and nickel on survival, growth, and reproduction of a unionid mussel (Lampsilis siliquoidea)
The ASTM International standard test method for freshwater mussels (E2455‐13) recommends 4‐week toxicity testing with juveniles to evaluate chronic effects on survival and growth. However, concerns remain that the method may not adequately address the sensitivity of mussels to longer term exposures (>4 weeks), particularly in relation to potential reproductive impairments. No standard...
Authors
Ning Wang, James L. Kunz, Danielle M. Cleveland, Rebecca A. Dorman, Jeffery A. Steevens, Sandy Raimondo, Tom Augspurger, M. Christopher Barnhart
Regional seismic velocity model for the U.S. Atlantic and Gulf Coastal Plains based on measured shear wave velocity, sediment thickness, and surface geology Regional seismic velocity model for the U.S. Atlantic and Gulf Coastal Plains based on measured shear wave velocity, sediment thickness, and surface geology
The Atlantic and Gulf Coastal Plains (CPs) are characterized by widespread accumulations of low-velocity sediments and sedimentary rock that overlay high-velocity bedrock. Geology and sediment thickness greatly influence seismic wave propagation, but current regional ground motion amplification and seismic hazard models include limited characterization of these site conditions. In this...
Authors
Cassie Gann-Phillips, Ashly Cabas, Chunyang Ji, Chris H. Cramer, James Kaklamanos, Oliver S. Boyd
Drought, fire, and archeology in the Jemez Mountains, New Mexico Drought, fire, and archeology in the Jemez Mountains, New Mexico
In the Jemez Mountains of New Mexico, cultural resources and traditional cultural landscapes are vulnerable to compounded impacts of changing climate and wildfires. Here, we discuss impacts to archeological resources observed in recent, high-severity fires, including at Bandelier National Monument and Valles Caldera National Preserve, and describe an interdisciplinary effort to quantity
Authors
Anastasia Steffen, Jamie Civitello, Rachel A. Loehman, Robert Parmenter
Using open-science workflow tools to produce SCEC CyberShake physics-based probabilistic seismic hazard models Using open-science workflow tools to produce SCEC CyberShake physics-based probabilistic seismic hazard models
The Statewide (formerly Southern) California Earthquake Center (SCEC) conducts multidisciplinary earthquake system science research that aims to develop predictive models of earthquake processes, and to produce accurate seismic hazard information that can improve societal preparedness and resiliency to earthquake hazards. As part of this program, SCEC has developed the CyberShake...
Authors
Scott Callaghan, Phillip J. Maechling, Fabio Silva, Mei-Hui Su, Kevin R. Milner, Robert Graves, Kim Olsen, Yifeng Cui, Karan Vahi, Albert Kottke, Christine A Goulet, Ewa Deelman, Tom Jordan, Yehuda Ben-Zion
Living with wildfire in Santa Fe: 2021 Data Report Living with wildfire in Santa Fe: 2021 Data Report
The City of Santa Fe is well known for arts, food, and architecture, but it also faces significant risk of wildfire. In 2020, the City of Santa Fe partnered with the Wildfire Research (WiRē) team with the goal of better understanding the needs of residents within the study area and their level of support for wildfire risk mitigation programs. The resulting project centers on two types of...
Authors
James R. Meldrum, Julia Goolsby, Colleen Donovan, Porfirio Chavarria, Hannah Brenkert-Smith, Patricia A. Champ, Christopher M. Barth, Carolyn Wagner, Chiara Forrester
Investigating past earthquakes with coral microatolls Investigating past earthquakes with coral microatolls
Intertidal corals (microatolls) preserve evidence of past uplift or subsidence with annual precision. Microatoll records are particularly useful along subduction zones, and can reveal past earthquake ruptures at a level of detail that is ordinarily limited to the instrumental era.
Authors
Belle E. Philibosian
Coastal breeding bird phenology on the dredged-material islands of the Baptiste Collette Bayou, US Army Corps of Engineers, New Orleans District, Louisiana Coastal breeding bird phenology on the dredged-material islands of the Baptiste Collette Bayou, US Army Corps of Engineers, New Orleans District, Louisiana
Coastal bird populations in North America have experienced significant population declines over the past four decades, and many species have become dependent upon human-made islands and other sediment-based habitats created through dredged material deposition. We monitored the breeding phenology of coastal bird populations utilizing dredged-material islands and open depositional areas in...
Authors
Michael P. Guilfoyle, Amanda Nicole Anderson, Samuel S. Jackson, Jacob F. Jung, Theodore J. Zenzal, Burton C. Suedel, Jeffrey M. Corbino
Evaluating effectiveness of restoration to address current stressors to riverine fish Evaluating effectiveness of restoration to address current stressors to riverine fish
River restoration programmes with the goal of conserving and rehabilitating inland fishes have a multi-decadal history, but evaluation and synthesis of past restoration actions have been limited by a lack of monitoring and reporting. Given that calls for both monitoring and systematic reviews of restoration have increased, we were interested in the influence that restoration has had on...
Authors
Jane S. Rogosch, Hadley I. A. Boehm, Ralph W. Tingley, Kiah D. Wright, Elisabeth B. Webb, Craig P. Paukert
Integration of rupture directivity models for the US National Seismic Hazard Model Integration of rupture directivity models for the US National Seismic Hazard Model
Several rupture directivity models (DMs) have been developed in recent years to describe the near-source spatial variations in ground motion amplitudes related to propagation of rupture along the fault. We recently organized an effort towards incorporating these directivity effects into the USGS National Seismic Hazard Model (NSHM), by first evaluating the community's work and potential...
Authors
Kyle Withers, Morgan P. Moschetti, Peter M. Powers, Mark D. Petersen, Robert Graves, Brad T. Aagaard, Annemarie S. Baltay Sundstrom, Nico Luco, Erin A. Wirth, Sanaz Rezaeian, Eric M. Thompson
Manganese-rich sandstones as an indicator of ancient oxic lake water conditions in Gale crater, Mars Manganese-rich sandstones as an indicator of ancient oxic lake water conditions in Gale crater, Mars
Manganese has been observed on Mars by the NASA Curiosity rover in a variety of contexts and is an important indicator of redox processes in hydrologic systems on Earth. Within the Murray formation, an ancient primarily fine-grained lacustrine sedimentary deposit in Gale crater, Mars, have observed up to 45× enrichment in manganese and up to 1.5× enrichment in iron within coarser grained...
Authors
Patrick J. Gasda, Nina L. Lanza, Pierre-Yves Meslin, Sarah N. Lamm, Agnes Cousin, Ryan Anderson, Olivier Forni, Elizabeth D. Swanner, Jonas L'Haridon, Jens Frydenvang, Nancy Thomas, Nathan Stein, Woody W. Fischer, Joel A. Hurowitz, Dawn Sumner, Frances Rivera-Hernandez, Laura Crossey, Ann M. Ollila, Ari Essunfeld, Horton E. Newsom, Benton C. Clark, Roger C. Wiens, Olivier Gasnault, Sam M. Clegg, Sylvestre Maurice, Dorothea Delapp, A. Reyes-Newell