Unified Interior Regions

Region 7: Upper Colorado Basin

Map of Region 7 Upper Colorado River Basin

Map of Region 7 Upper Colorado River Basin

Map Showing USGS/DOI Unified Region 7 and parts of adjoining Regions

Regions L2 Landing Page Tabs

USGS Science Centers in Region 7-Upper Colorado Basin produce hundreds of USGS-series publications, journal papers, and books each year that are subject to rigorous review by USGS specialists. The publications shown below on this page are related to study areas and staff members of USGS Science Centers in Region 7 compiled from the USGS Publications Warehouse.

Filter Total Items: 4,938
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Year Published: 2018

Developing a global earthquake risk model

The understanding of earthquake risk is the first step towards the development and implementation of disaster risk reduction measures. However, in many countries, especially the countries of the developing world, earthquake risk models either do not exist or are publicly inaccessible. The Global Earthquake Model (GEM) Foundation and...

Silva, Vitor; Crowley, Helen; Jaiswal, Kishor; Acevedo, Ana Beatriz; Pittore, Massimiliano; Journey, Murray

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Year Published: 2018

Damage accumulation for a two-story wood-frame building in sequences of induced earthquakes

In this study, a nonlinear model of a two-story multifamily wood-frame residential structure is subjected to recordings of sequences of induced earthquakes in order to quantify changes in fragility and accumulation of damage throughout multiple earthquake loadings. Initial efforts consisting of ground motion selection, building design, numerical...

Chase, R; Liel, A.B.; Luco, Nicolas

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Year Published: 2018

Opportunities to enhance seismic demand parameters for future editions of the AS1170.4

Geoscience Australia has recently released its 2018 National Seismic Hazard Assessment (NSHA18). Results from the NSHA18 indicate significantly lower seismic hazard across almost all Australian localities at the 1/500 annual exceedance probability level relative to the factors adopted for the current Australian Standard AS1170.4–2007 (R2018)....

Allen, Trevor; Luco, Nicolas

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Year Published: 2018

Coseismic sackungen in the New Madrid seismic zone, USA

High‐resolution lidar reveals newly recognized evidence of strong shaking in the New Madrid seismic zone in the central United States. We mapped concentrations of sackungen (ridgetop spreading features) on bluffs along the eastern Mississippi River valley in northwestern Tennessee that likely form or are reactivated during large earthquakes. These...

Delano, Jaime E.; Gold, Ryan D.; Briggs, Richard W.; Jibson, Randall W.

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Year Published: 2018

Extreme‐value geoelectric amplitude and polarization across the northeast United States

Maps are presented of extreme‐value geoelectric field amplitude and horizontal polarization for the Northeast United States. These maps are derived from geoelectric time series calculated for sites across the Northeast by frequency‐domain multiplication (time‐domain convolution) of 172 magnetotelluric impedance tensors, acquired during a survey,...

Love, Jeffrey J.; Lucas, Greg M.; Bedrosian, Paul A.; Kelbert, Anna

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Year Published: 2018

The Las Vegas Formation

The Las Vegas Formation was established in 1965 to designate the distinctive light-colored, fine-grained, fossil-bearing sedimentary deposits exposed in and around the Las Vegas Valley, Nevada. In a coeval designation, the sediments were subdivided into informal units with stratigraphic and chronologic frameworks that have persisted in the...

Springer, Kathleen B.; Pigati, Jeffrey S.; Manker, Craig R.; Mahan, Shannon A.
Springer, K.B., Pigati, J.S., Manker, C.R., and Mahan, S.A., 2018, The Las Vegas Formation: U.S. Geological Survey Professional Paper 1839, 62 p., https://doi.org/10.3133/pp1839.

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Year Published: 2018

The geology and paleontology of Tule Springs Fossil Beds National Monument, Nevada

On December 19, 2014, Tule Springs Fossil Beds National Monument, located in the Las Vegas Valley of southern Nevada, was established by Congress as the 405th unit of the National Park Service to “conserve, protect, interpret, and enhance for the benefit of present and future generations the unique and nationally important paleontological,...

Springer, Kathleen B.; Pigati, Jeffrey S.; Scott, Eric
Springer, K.B., Pigati, J.S., and Scott, E., 2018, The geology and paleontology of Tule Springs Fossil Beds National Monument, Nevada: U.S. Geological Survey Fact Sheet 2018–3038, 4 p., https://doi.org/10.3133/fs20183038.

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Year Published: 2018

Ground motions from induced earthquakes in Oklahoma and Kansas

Improved predictions of earthquake ground motions are critical to advancing seismic hazard analyses and earthquake response. The high seismicity rate from 2009 to 2016 in Oklahoma and Kansas provides an extensive data set for examining the ground motions from these events. We evaluate the ability of three suites of ground‐motion prediction...

Moschetti, Morgan P.; Thompson, Eric M.; Powers, Peter M.; Hoover, Susan M.; McNamara, Daniel E.

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Year Published: 2018

Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado

The geologic map of the Pagosa Springs 7.5’ quadrangle in southwestern Colorado includes the town of Pagosa Springs that is partly known for its hot springs. The quadrangle is southwest of the San Juan volcanic mountains (Oligocene) and north of the San Juan Basin. All bedrock units exposed in the map area are Upper Cretaceous in age except a...

Moore, David W.; Lidke, David J.
Moore, D.W., and Lidke, D.J., 2018, Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado: U.S. Geological Survey Scientific Investigations Map 3419, pamphlet 24 p., scale 1:24,000, https://doi.org/10.3133/sim3419.

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Year Published: 2018

Map of sand and gravel mines, prospects, and occurrences, and the geologic units that host them in the Wyoming Landscape Conservation Initiative (WLCI) study area, southwestern Wyoming

The Wyoming Landscape Conservation Initiative (WLCI) is a long-term science based effort to assess and enhance aquatic and terrestrial habitats at a landscape scale in southwest Wyoming, while facilitating responsible development through local collaboration and partnerships. The role of the U.S. Geological Survey is to build the scientifically...

Wilson, Anna B.
Wilson, A.B., 2018, Map of sand and gravel mines, prospects, and occurrences, and the geologic units that host them in the Wyoming Landscape Conservation Initiative (WLCI) study area, southwestern Wyoming: U.S. Geological Survey Open-File Report 2018–1139, 11 p., scale 1;500,000, https://doi.org/10.3133/ofr20181139.

Photos and videos described and linked on this webpage come from a wide variety of USGS science activities and presentations performed by USGS Science Center staff members in the Region 7-Upper Colorado Basin.

Filter Total Items: 519
Plots of realtime Meteorological conditions at Devil's Thumb site, Colorado

Devil's Thumb Meteorologic site

Realtime snow weather conditions (temperature, relative humidity, wind speed, snow depth) at Devil's Thumb meteorological site in Colorado.
 

This page includes links to Social Media accounts (top of page), Science Centers (middle of page), and Regional Office staff members (bottom of page) of the USGS Region 7--Upper Colorado Basin.