Publications
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The Europa Imaging System (EIS) investigation
The Europa Imaging System (EIS) consists of a Narrow-Angle Camera (NAC) and a Wide-Angle Camera (WAC) that are designed to work together to address high-priority science objectives regarding Europa’s geology, composition, and the nature of its ice shell. EIS accommodates variable geometry and illumination during rapid, low-altitude flybys with both framing and pushbroom imaging...
Authors
E.P. Turtle, A.S. McEwen, G.W. Patterson, C.M. Ernst, C.M. Elder, K.A. Slack, S.E. Hawkins, J. McDermott, H.M. Meyer, R. DeMajistre, R. Espiritu, H. Seifert, J. Niewola, Michael T. Bland, M.K. Becker, J. Centurelli, G.C. Collins, P. Corlies, H. Darlington, I.J. Daubar, C. Derr, C. Detelich, E. Donald, W. Edens, L. Fletcher, C. Gardner, F. Graham, C.J. Hansen, C. Haslebacher, A.G. Hayes, D. Humm, T.A. Hurford, Randolph L. Kirk, N.W. Kutsop, W.J. Lees, D.T. Lewis, S. London, A. Magner, M.A. Mills, A.C. Barr Mlinar, F. Morgan, F. Nimmo, A. Ocasio Milanes, S. Osterman, C.B. Phillips, A. Pommerol, L. Prockter, L.C. Quick, G. Robbins, J.M. Soderblom, B.A. Stewart, A. Stickle, S.S. Sutton, N. Thomas, I. Torres, O.J. Tucker, R.B. Van Auken, K.A. Wilk
Using the horizontal-to-vertical spectral ratio method to estimate thickness of the Barry Arm landslide, Prince William Sound, Alaska
Conducting detailed investigations of large landslides is difficult, especially in the subsurface, largely due to environmental factors such as steep slopes, difficult access, and numerous objective hazards. These factors have made it challenging to accurately estimate the depth to the failure surface of the Barry Arm landslide, a large (roughly 108 cubic meters), deep-seated bedrock...
Authors
Andrew L. Collins, Kate E. Allstadt, Dennis M. Staley
Reconciling bias in moderate magnitude earthquake ground motions predicted by numerical simulations
Recent studies found a significant underprediction in ground motion intensity measures for finite-fault simulations of moderate magnitude events in southern California relative to established ground motion models. This study aims to understand the source(s) of this bias by evaluating ground motion residuals. For this, simulations have been performed for a total of 27 well-recorded...
Authors
K. C. Sajan, Chukwuebuka C. Nweke, Jonathon P. Stewart, Robert Graves
International data gaps at the Center for Engineering Strong Motion Data
The Center for Engineering Strong Motion Data (CESMD) is utilized by seismologists, engineers, and disaster management professionals in the US and has historically achieved and distributed waveforms from across the globe for significant earthquakes. The increased access to the waveforms via Web API (Application Programming Interface) offers a unique opportunity to provide the community...
Authors
Han Shao, Jeff Brody, Lisa Sue Schleicher, Kristin Marano, Jamison Haase Steidl, Eric M. Thompson, Mike Hearne, James Luke Blair
Global survey of paleo-bedforms on Mars
Sedimentary processes on Mars have contributed to a plethora of landforms, both ancient and modern. Many of these are aeolian- or fluvial-formed constructs that meet the morphologic criteria for dunes and ripples but are clearly lithified and part of the rock record. This study conducted a survey of Mars using data returned from the High Resolution Imaging Science Experiment (HiRISE) to...
Authors
Matthew Chojnacki, Lori K. Fenton, Lauren A. Edgar, Mackenzie D. Day, Christopher S. Edwards, Aaron R Weintraub, Amber L. Gullikson, Matt Telfer
U.S. Geological Survey Earthquake Hazards Program decadal science strategy, 2024–33
Executive Summary Earthquakes represent one of our Nation’s most significant and costly natural hazards, with estimated annual loses from earthquakes close to $15 billion in 2023. Over the past two centuries, 37 U.S. States have experienced an earthquake exceeding a magnitude of 5, and 50 percent of States have a significant potential for future damaging shaking; these statistics speak...
Authors
Gavin P. Hayes, Annemarie S. Baltay Sundstrom, William D. Barnhart, Michael L. Blanpied, Lindsay A. Davis, Paul S. Earle, Ned Field, Jill M. Franks, Douglas D. Given, Ryan D. Gold, Christine A Goulet, Michelle M. Guy, Jeanne L. Hardebeck, Nico Luco, Frederick Pollitz, Adam T. Ringler, Katherine M. Scharer, Steven Sobieszczyk, Valerie I. Thomas, Cecily J. Wolfe
Assessing community needs for terrestrial analog studies
Executive SummaryThe U.S. Geological Survey (USGS) developed and released a survey to assess the terrestrial analog needs of the planetary science community. The goal was to assess the current state of terrestrial analog studies and determine community needs related to the use of field sites for training and research, data dissemination and archiving, and sample collections.The survey...
Authors
Lauren A. Edgar, M. Elise Rumpf, James A. Skinner,, Amber L. Gullikson, Laszlo P. Keszthelyi, Marc A. Hunter, Tenielle Gaither
On algorithmically determined versus traditional macroseismic intensity assignments
The utility of macroseismic data, defined as the effects of earthquakes on humans and the built environment, has been increasingly recognized following the advent of online systems that now produce unprecedented volumes of macroseismic intensity information. Contributed reports from the U.S. Geological Survey “Did You Feel It?” (DYFI) system (Wald et al., 1999) are used to generate...
Authors
Susan E. Hough
Seismicity zoning at Coso geothermal field and stress changes from fluid production and migration
The Coso geothermal field is a major geothermal power production site in the western United States. It has been observed that low-magnitude seismic events (M < 3.71) are unevenly distributed in three distinct zones, namely, nearfield ( 6 km) from the Coso geothermal plant. These zones exhibit distinct changes in earthquake location before and during geothe
Authors
Sui Tung, Ole Kaven, Manoochehr Shirzaei, Timothy Masterlark, Herbert F. Wang, Wei-Chung Huang, Kurt L. Feigl
Shallow lake, strong shake: Record of seismically triggered lacustrine sedimentation from the 1959 M7.3 Hebgen Lake earthquake within Henrys Lake, Idaho
We investigate a shallow lake basin for evidence of a large historic intraplate earthquake in western North America. Henrys Lake, Idaho is an atypical candidate for a lacustrine paleoseismic study given its shallow depth (~7 m) and low relief (≤2° slopes). Here, we test the earthquake-recording capacity of this basin type by showing sedimentological evidence of the 1959 M7.3 Hebgen Lake...
Authors
Sylvia R. Nicovich, Christopher DuRoss, Jessica Ann Thompson Jobe, Jessica R. Rodysill, Richard W. Briggs, Alexandra Elise Hatem, Madeleine Mai-Lynh Tan, Yann Gavillot, Noah Silas Lindberg, Laura E. Strickland, Jason Scott Padgett
Reduced injection rates and shallower depths mitigated induced seismicity in Oklahoma
The proximity of wastewater disposal to the Precambrian basement is a critical factor influencing induced earthquake rates in the Central United States, but the impact of reducing injection depths has not been widely demonstrated. Beginning in 2015, state regulatory efforts in Oklahoma and Kansas mandated that wells injecting into the lower Arbuckle Group, a basal sedimentary unit, be...
Authors
Robert J. Skoumal, Andrew J. Barbour, Justin L. Rubenstein, Margaret Elizabeth Glasgow
Before the fire: Predicting burn severity and potential post-fire debris-flow hazards to Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) conservation populations
BackgroundColorado River Cutthroat Trout (CRCT; Oncorhynchus clarkii pleuriticus) conservation populations may be at risk from wildfire and post-fire debris flows hazards.AimTo predict burn severity and potential post-fire debris flow hazard classifications to CRCT conservation populations before wildfires occur.MethodsWe used remote sensing, spatial analyses, and machine learning to...
Authors
Adam Gerhard Wells, Charles Yackulic, Jaime Kostelnik, Andrew R. Bock, Robert E. Zuellig, Daren Carlisle, James Roberts, Kevin B. Rogers, Seth M. Munson