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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Slow rupture, long rise times, and multi-fault geometry: The 2020 M6.4 southwestern Puerto Rico mainshock Slow rupture, long rise times, and multi-fault geometry: The 2020 M6.4 southwestern Puerto Rico mainshock
The M6.4 mainshock of the southwestern Puerto Rico seismic sequence on 7 January 2020, was one of the most impactful modern earthquakes in the northeastern Caribbean. Due to its offshore location and complex aftershock distribution, its source kinematics remain poorly constrained. This active sequence illuminated a complex set of previously unrecognized structures that indicate multiple...
Authors
Margarita M. Solares-Colón, Dara Elyse Goldberg, Diego Melgar, Elizabeth A. Vanacore, Valerie J. Sahakian, William L. Yeck, Francisco Hernández, Alberto Lopez-Venegas
Advancing broadscale spatial evapotranspiration modelling by incorporating sun-induced chlorophyll fluorescence measurements Advancing broadscale spatial evapotranspiration modelling by incorporating sun-induced chlorophyll fluorescence measurements
Evapotranspiration (ET) describes the sum of water transfer from the ground surface through soil evaporation and water loss from leaf stomata into the atmosphere − critical factors linking the global water and carbon cycles. Myriad ET models based on remote sensing data provide spatially continuous estimates of ET; however, leaf photosynthetic information is critical to ensure accurate...
Authors
Sicong Gao, Pamela L. Nagler, William Woodgate, Alfredo Huete, Tanya M. Doody
A psychologically wise intervention to inform relational organizing in the face of climate and ocean change A psychologically wise intervention to inform relational organizing in the face of climate and ocean change
Widespread climate action is broadly recognized as necessary to reduce climate change impacts on oceans (“ocean change”), but threats to ocean ecosystems are commonly perceived as distant, irrelevant, and unchangeable. Communicating about ocean change, therefore, requires message framing strategies targeting evidence-based psychological precursors to behavior. In a pre-registered case...
Authors
Jennifer L. Waldo, Thomas C. Swearingen, Megan Siobhan Jones
Machine learning provides reconnaissance-type estimates of carbon dioxide storage resources in oil and gas reservoirs Machine learning provides reconnaissance-type estimates of carbon dioxide storage resources in oil and gas reservoirs
Oil and gas reservoirs represent suitable containers to sequester carbon dioxide (CO2) in a supercritical state because they are accessible, reservoir properties are known, and they previously contained stored buoyant fluids. However, planners must quantify the relative magnitude of the CO2 storage resource in these reservoirs to formulate a comprehensive strategy for CO2 mitigation...
Authors
Emil Attanasi, Philip A. Freeman, Timothy C. Coburn
Bølling-Allerød productivity in the subarctic Pacific driven by seasonal upwelling Bølling-Allerød productivity in the subarctic Pacific driven by seasonal upwelling
The Bølling-Allerød deglacial event is marked by high diatom productivity and opal deposition throughout the subarctic Pacific. This opal could either constitute a strengthened biological pump and thus carbon sequestration, or a weakened biological pump and release of marine-sequestered CO2 to the atmosphere. We quantify silicic acid supply at IODP Site U1340 in the Bering Sea using...
Authors
Kimberly A. deLong, Terrence Blackburn, Beth Elaine Caissie, Jason A. Addison, Zuzanna Stroynowski, Maria R. Sipala, Franco Marcantonio, Ana Christina Ravelo
Evaluation of SARS-CoV-2 antibody detection methods for wild Cervidae Evaluation of SARS-CoV-2 antibody detection methods for wild Cervidae
Wildlife surveillance programs often use serological data to monitor exposure to pathogens. Diagnostic sensitivity and specificity of a serological assay quantify the true positive and negative rates of the diagnostic assay, respectively. However, an assay’s accuracy can be affected by wild animals’ pathogen exposure history and quality of the sample collected, requiring separate...
Authors
Joshua Hewitt, Grete Wilson-Henjum, Jeffrey C. Chandler, Aaron T. Phillips, Diego G. Diel, W. David Walter, Alec Baker, Jennifer Høy-Petersen, Guillaume Bastille-Rousseau, Tadao Kishimoto, George Wittemyer, Jeremy Alder, Sara Hathaway, Kezia R. Manlove, Travis Gallo, Jennifer Mullinax, Carson Coriell, Matthew Payne, Meggan E. Craft, Tyler J. Garwood, Tiffany M. Wolf, Maria A. Diuk-Wasser, Meredith C. VanAcker, Laura Dudley Plimpton, Mark Q. Wilber, Daniel Grove, Justin Koseiwska, Lisa I. Muller, Kim M. Pepin
Prospectivity modeling of the NASA VIPER landing site at Mons Mouton near the Lunar South Pole Prospectivity modeling of the NASA VIPER landing site at Mons Mouton near the Lunar South Pole
We use a high-resolution digital elevation model and a numerical thermal model to produce a variety of inputs for a water-ice prospectivity model for the Volatiles Investigating Polar Exploration Rover (VIPER) landing site. These input data are maps of topography, surface slope, surface aspect, surface curvature, maximum temperature, depth to ice stability, permanently shadowed regions...
Authors
Joshua Aaron Coyan, Matthew Siegler, José Martinez-Comacho, Ross A. Beyer, Mark Shirley
Broadband stochastic simulation of earthquake ground motions with multiple strong phases with an application to the 2023 Kahramanmaraş, Turkey (Türkiye), earthquake Broadband stochastic simulation of earthquake ground motions with multiple strong phases with an application to the 2023 Kahramanmaraş, Turkey (Türkiye), earthquake
Stochastic ground motion simulation models are often less accurate at lower frequencies than at higher frequencies when fitting recorded data unless supplemented by a deterministic forward directivity velocity pulse model. Moreover, time-modulated stochastic models, which adjust ground motion amplitudes over time, typically use functions that fail to capture multiple strong-motion phases...
Authors
S. M. Sajad Hussaini, Shaghayegh Karimzadeh, Sanaz Rezaeian, Paulo B. Lourenco
Daily survival rate and nest-site selection of Zone-tailed Hawks (Buteo albonotatus) in the Chihuahuan Desert ecoregion of Texas Daily survival rate and nest-site selection of Zone-tailed Hawks (Buteo albonotatus) in the Chihuahuan Desert ecoregion of Texas
The Zone-tailed Hawk (Buteo albonotatus) is one of the least studied raptors in North America and lacks contemporary literature allowing informed management decisions for this species. Zone-tailed Hawks occupy rugged areas in the southwestern region of the United States and are listed as state threatened in Texas. Our objectives were to assess habitat, productivity, and daily survival...
Authors
Caroline Skidmore, Clint W. Boal, Ben R. Skipper, Russell Martin
Reproductive habitat mismatch influences chytrid infection dynamics in a tropical amphibian community Reproductive habitat mismatch influences chytrid infection dynamics in a tropical amphibian community
Batrachochytrium dendrobatidis (Bd) has been decimating amphibian populations globally; previous work indicates that infection risk increases with moisture and thermal mismatch from a host’s optimum. We hypothesized that, in addition to these abiotic influences, mismatch of hosts from their reproductive habitat heightens infection risk via exposure and/or susceptibility mechanisms. We...
Authors
Neil A. Gilbert, Rayna C. Bell, Alessandro Catenazzi, Renato A. Martins, Shannon Buttimer, Wesley J. Neely, Carolina Lambertini, Veronica Saenz Calderon, Célio F.B. Haddad, C. Guilherme Becker, Graziella Vittoria DiRenzo
Detection of landslide-generated tsunami by shipborne GNSS precise point positioning Detection of landslide-generated tsunami by shipborne GNSS precise point positioning
Precise point positioning (PPP) of ships using Global Navigation Satellite System (GNSS) data reveals the precise movements of marine vessels. This method may quantify anomalies in sea surface height with implications for oceanographic monitoring, exploration, and tsunami warning. The GNSS PPP data from the R/V Sikuliaq, a research ship of the University of Alaska Fairbanks, were...
Authors
Adam E. Manaster, Anne F Sheehan, Dara Elyse Goldberg, Katherine R. Barnhart, Ethan F. Roth
Destruction and transformation: Lessons learned from the 2015 Gorkha, Nepal, earthquake Destruction and transformation: Lessons learned from the 2015 Gorkha, Nepal, earthquake
No abstract available.
Authors
Surya Narayan Shrestha, Susan E. Hough