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The Southwest Region ranges from the Colorado Rockies to the Gulf Coast and the Western Deserts to the Great Plains. The Southwest Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.
News
In the spring of 1996, the Kansas Applied Remote Sensing (KARS) program on the campus of Kansas University started chronicling the greening and browning of America.
A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.
Human activity, such as groundwater pumping, land management, reservoir operations and urbanization, has a measurable effect on streamflows in Kansas locally, regionally and statewide, according to a new report by the U.S. Geological Survey, done in cooperation with the U.S. Fish and Wildlife Service and the Kansas Department of Wildlife, Parks and Tourism.
Publications
A flatfile of ground motion intensity measurements from induced earthquakes in Oklahoma and Kansas
We have produced a uniformly processed database of orientation-independent (RotD50, RotD100) ground motion intensity measurements containing peak horizontal ground motions (accelerations and velocities) and 5-percent-damped pseudospectral accelerations (0.1–10 s) from more than 3,800 M ≥ 3 earthquakes in Oklahoma and Kansas that occurred...
Rennolet, Steven B.; Moschetti, Morgan P.; Thompson, Eric M.; Yeck, William L. Considerations in comparing the U.S. Geological Survey one‐year induced‐seismicity hazard models with “Did You Feel It?” and instrumental data
The recent steep increase in seismicity rates in Oklahoma, southern Kansas, and other parts of the central United States led the U.S. Geological Survey (USGS) to develop, for the first time, a probabilistic seismic hazard forecast for one year (2016) that incorporates induced seismicity. In this study, we explore a process to ground‐truth the...
White, Isabel; Liu, Taojun; Luco, Nicolas; Liel, Abbie
Methods for estimating annual exceedance-probability streamflows for streams in Kansas based on data through water year 2015
A study was done by the U.S. Geological Survey in cooperation with the Kansas Department of Transportation and the Federal Emergency Management Agency to develop regression models to estimate peak streamflows of annual exceedance probabilities of 50, 20, 10, 4, 2, 1, 0.5, and 0.2 percent at ungaged locations in Kansas. Peak streamflow frequency...
Painter, Colin C.; Heimann, David C.; Lanning-Rush, Jennifer L.
United States Assessments of Undiscovered Oil and Gas Resources
USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World (click here for information about World Oil and Gas Assessments). This website provides access to new, prioritized, assessment results and supporting data for the United States, as part...
Summer 2011 Missouri River Basin flood
Learn more about USGS flood activities related to the 2011 Missouri River Basin Flood resulting from higher-than-average snowmelt runoff combined with heavy spring rains.
Sedgwick Basin Oil and Gas Assessments
Province Code: 5059
The Salina Basin Province (5059), covers an area of about 45,000 sq mi, consisting of the eastern half of Nebraska and the north-central portion of Kansas. The basin lies between the Cambridge Arch-Central Kansas Uplift Province (5053) on the west, the Nemaha Uplift Province (5055) to the east, the Sioux Arch Province (5032) to the north, and a...
Nemaha Uplift Province Oil and Gas Assessment
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Nemaha Uplift Province (5055):
- 1995 Assessment (DDS 30)
Forest City Basin Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Forest City Basin Province (5056):
- 1995 Assessment (DDS 30)
Cambridge Arch-Central Kansas Uplift Oil and Gas Assessment
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Cambridge Arch/Central Kansas Uplift Province (5053):
- 1995 Assessment (DDS 30)
Cherokee Platform Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Cherokee Platform Province 5060 in Western Oklahoma, Southeast Kandas and Western Missouri:
- 2015 Conventional and Continuous Assessment (Fact Sheet 2015-3054)
- 1995 Assessment ( ...
Anadarko Basin Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Anadarko Basin Province 5058:
- 2010 Conventional and Continuous Assessment (Fact Sheet 2011-3003, complete geologic report also available in ...
Denver Basin Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Denver Basin Province 5039 in Colorado, Kansas, Nebraska, South Dakota, and Wyoming:
- 2003 Conventional and Continuous Assessment (DDS 69-P)
- 1995 Assessment ( ...
Natural Drought and Flood Histories from Lacustrine Archives
Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse. In order to explain the patterns of naturally-occurring drought, floods, and storms for the past, identified by...
Algal and Other Environmental Toxins Laboratory — Lawrence, Kansas
About the Laboratory
Scientists at the Organic Geochemistry Research Laboratory (OGRL) in Lawrence, Kansas, develop and employ targeted and non-targeted analytical methods for identification and quantitation of known and understudied algal/cyanobacterial toxins that can impact the health of humans and other organisms. Newly acquired (2018) instrumentation will expand...
Organic Geochemistry Research Laboratory — Lawrence, Kansas
About the Laboratory
Chemists and geologists at the Kansas Water Science Center's Organic Geochemistry Research Laboratory (OGRL) develop targeted and non-targeted analytical methods for the identification and quantitation of chemicals that can impact the health of humans and other organisms and use bioassays to screen for receptor inhibition. They have developed...
The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.
GIS Data for Forest City Basin Oil and Gas Assessments
GIS Data for Sedgwick Basin Oil and Gas Assessments
GIS Data for Cambridge Arch-Central Kansas Uplift Oil and Gas Assessments
GIS Data for Nemaha Uplift Oil and Gas Assessments
Downloadable Data for Cherokee Platform Oil and Gas Assessments
Downloadable Data for Anadarko Basin Oil and Gas Assessments
Interactively explore assessment summary information for continuous (unconventional) assessments conducted at the USGS from 2000-2018. The assessment results data used to generate this visualization can be downloaded here in Excel Format. These data represent all assessment results for Continuous Assessments only from 2000-2018.
Streamflow statistics for the state of Kansas.
A Map showing various levels of the 1998 Cowskin Creek Flood.
The National Water Information System (NWIS) web application provides access to real-time and historical surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.
Advanced Hydrologic Prediction Service (AHPS) is a new and essential component of our Climate, Water, and Weather Services. AHPS is a web-based suite of accurate and information-rich forecast products. They display the magnitude and uncertainty of occurrence of floods or droughts, from hours to days and months, in advance.
This map shows the provinces assessed by the USGS for undiscovered oil and gas resources.
Digital map of aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming - This digital data set represents the extent of the High Plains aquifer in the central United States
An interactive map of Johnson County with sites.
This map shows the location of stream gages where the water level is currently at or above flood stage (depicted as a black triangle) or at high flow (depicted as blue circles) The high flow conditions are expressed as percentiles that compare the current (i.e., within the past several hours) instantaneous flow value to historical daily mean flow values
Study area for the Kansas River Algal project.
The purpose of the study is to assess the effects of wastewater discharge and treatment facility upgrades on the environmental and biological conditions of Indian Creek, downstream from the Middle Basin wastewater treatment facility (WWTF).
Equus Site Map has various wells and recharge points in the Equus study area to promote water recharge.
The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.
A flatfile of ground motion intensity measurements from induced earthquakes in Oklahoma and Kansas
We have produced a uniformly processed database of orientation-independent (RotD50, RotD100) ground motion intensity measurements containing peak horizontal ground motions (accelerations and velocities) and 5-percent-damped pseudospectral accelerations (0.1–10 s) from more than 3,800 M ≥ 3 earthquakes in Oklahoma and Kansas that occurred...
Rennolet, Steven B.; Moschetti, Morgan P.; Thompson, Eric M.; Yeck, William L. Considerations in comparing the U.S. Geological Survey one‐year induced‐seismicity hazard models with “Did You Feel It?” and instrumental data
The recent steep increase in seismicity rates in Oklahoma, southern Kansas, and other parts of the central United States led the U.S. Geological Survey (USGS) to develop, for the first time, a probabilistic seismic hazard forecast for one year (2016) that incorporates induced seismicity. In this study, we explore a process to ground‐truth the...
White, Isabel; Liu, Taojun; Luco, Nicolas; Liel, Abbie Methods for estimating annual exceedance-probability streamflows for streams in Kansas based on data through water year 2015
A study was done by the U.S. Geological Survey in cooperation with the Kansas Department of Transportation and the Federal Emergency Management Agency to develop regression models to estimate peak streamflows of annual exceedance probabilities of 50, 20, 10, 4, 2, 1, 0.5, and 0.2 percent at ungaged locations in Kansas. Peak streamflow frequency...
Painter, Colin C.; Heimann, David C.; Lanning-Rush, Jennifer L. Predicting cyanobacterial abundance, microcystin, and geosmin in a eutrophic drinking-water reservoir using a 14-year dataset
Cyanobacterial blooms degrade water quality in drinking water supply reservoirs by producing toxic and taste-and-odor causing secondary metabolites, which ultimately cause public health concerns and lead to increased treatment costs for water utilities. There have been numerous attempts to create models that predict cyanobacteria and their...
Harris, Ted D.; Graham, Jennifer L. A rare moderate‐sized (Mw 4.9) earthquake in Kansas: Rupture process of the Milan, Kansas, earthquake of 12 November 2014 and its relationship to fluid injection
The largest recorded earthquake in Kansas occurred northeast of Milan on 12 November 2014 (Mw 4.9) in a region previously devoid of significant seismic activity. Applying multistation processing to data from local stations, we are able to detail the rupture process and rupture geometry of the mainshock, identify the causative fault plane, and...
Choy, George; Rubinstein, Justin L.; Yeck, William L.; McNamara, Daniel E.; Mueller, Charles; Boyd, Oliver S.
Spatiotemporal variability of inorganic nutrients during wastewater effluent dominated streamflow conditions in Indian Creek, Johnson County, Kansas, 2012–15
Nutrients, particularly nitrogen and phosphorus, are a leading cause of water-quality impairment in Kansas and the Nation. Indian Creek is one of the most urban drainage basins in Johnson County, Kansas, and environmental and biological conditions are affected by contaminants from point and other urban sources. The Johnson County Douglas L. Smith...
Foster, Guy M.; Graham, Jennifer L.; Williams, Thomas J.; King, Lindsey R.
Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974
The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...
Frank, David G. Likelihood testing of seismicity-based rate forecasts of induced earthquakes in Oklahoma and Kansas
Likelihood testing of induced earthquakes in Oklahoma and Kansas has identified the parameters that optimize the forecasting ability of smoothed seismicity models and quantified the recent temporal stability of the spatial seismicity patterns. Use of the most recent 1-year period of earthquake data and use of 10–20-km smoothing distances...
Moschetti, Morgan P.; Hoover, Susan M.; Mueller, Charles
Logistic and linear regression model documentation for statistical relations between continuous real-time and discrete water-quality constituents in the Kansas River, Kansas, July 2012 through June 2015
The Kansas River is a primary source of drinking water for about 800,000 people in northeastern Kansas. Source-water supplies are treated by a combination of chemical and physical processes to remove contaminants before distribution. Advanced notification of changing water-quality conditions and cyanobacteria and associated toxin and taste-and-...
Foster, Guy M.; Graham, Jennifer L.
Irrigation water use in Kansas, 2013
This report, prepared by the U.S. Geological Survey in cooperation with the Kansas Department of Agriculture, Division of Water Resources, presents derivative statistics of 2013 irrigation water use in Kansas. The published regional and county-level statistics from the previous 4 years (2009–12) are shown with the 2013 statistics and are used to...
Lanning-Rush, Jennifer L.
Public-supply water use in Kansas, 2013
This report, prepared by the U.S. Geological Survey in cooperation with the Kansas Department of Agriculture’s Division of Water Resources, presents derivative statistics of water used by Kansas public-supply systems in 2013. The published statistics from the previous 4 years (2009–12) are also shown with the 2013 statistics and are...
Lanning-Rush, Jennifer L.; Eslick, Patrick J. A random-walk algorithm for modeling lithospheric density and the role of body forces in the evolution of the Midcontinent Rift
This paper develops a Monte Carlo algorithm for extracting three-dimensional lithospheric density models from geophysical data. Empirical scaling relationships between velocity and density create a 3D starting density model, which is then iteratively refined until it reproduces observed gravity and topography. This approach permits deviations from...
Levandowski, William Brower; Boyd, Oliver S.; Briggs, Richard W.; Gold, Ryan D.
National Oil and Gas Assessment Provinces
This is a graphic from the USGS National Oil and Gas Assessment Explorer application, which allows user to drill into 70 oil and gas assessment provinces throughout the United States.
Water and Village model
USGS scientists showing students how water flows through a village using a model.
Presenting a groundwater model
USGS scientist teaching students about the water cycle using a groundwater model for demonstration.
Testing water
USGS scientists showing students how they test water samples in the lab.
USGS scientists evaluating the nebulizer assembly
USGS scientists evaluating the nebulizer assembly in a mixed mode ionization source of a triple quadrupole mass spectrometer used to measure individual cyanotoxins
(USGS scientist working on data analysis of cyanotoxins in water
U.S. Geological Survey (USGS) scientist working on data analysis of cyanotoxins in water samples
Keith A. Loftin is the lead scientist for algal and cyanobacteria
Keith A. Loftin, USGS, is the lead scientist for algal and cyanobacterial toxins
Cyanobacterial accumulation at Binder Lake, Iowa
Algal and Other Environmental Toxins Laboratory — Lawrence, Kansas. Cyanobacterial accumulation along with a dead fish
USGS scientist preparing to measure cyanotoxins in water samples
USGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument
New (2018) instrument laboratory at the OGRL
View of the new (2018) instrument laboratory at the Organic Geochemistry Research Laboratory (OGRL), Lawrence, Kansas. View of a row of instruments in the laboratory.
Time-of-flight mass spectrometer used for the analysis of pesticides
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Scientists working on at time-of-flight mass spectrometer
New (2018) sample processing laboratory at the OGRL
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Sample processing laboratory.
In the spring of 1996, the Kansas Applied Remote Sensing (KARS) program on the campus of Kansas University started chronicling the greening and browning of America.
A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.
Human activity, such as groundwater pumping, land management, reservoir operations and urbanization, has a measurable effect on streamflows in Kansas locally, regionally and statewide, according to a new report by the U.S. Geological Survey, done in cooperation with the U.S. Fish and Wildlife Service and the Kansas Department of Wildlife, Parks and Tourism.
The U.S. Geological Survey has released a new report detailing changes of groundwater levels in the High Plains aquifer. The report presents water-level change data in the aquifer for two separate periods: from 1950 – the time prior to significant groundwater irrigation development – to 2015, and from 2013 to 2015.
Two decades of harmful algal bloom, nutrient and sediment research by the U.S. Geological Survey is helping to support Wichita’s long-term vision of a sustainable water supply into the future. Early warning indicators of harmful algal blooms have been developed for Cheney Reservoir, Kansas, according to a new USGS publication done in cooperation with the City of Wichita, Kansas.
Small variations in the density of the earth’s crust—undetectable to humans without sensitive instruments—influence where earthquakes may occur in the central United States. These new findings from the U.S. Geological Survey, published today in Nature Communications, may allow scientists to map where future seismicity in the center of the country is most likely.
Water-level changes from 2002 to 2015 were examined in wells screened in the High Plains aquifer within the Republican River Basin and the results are now available in a new U.S. Geological Survey Scientific Investigations Map.
A new U.S. Geological Survey publication and model can be applied by multiple entities to better understand flow, quantity, sources and sinks of groundwater in the Northern High Plains Aquifer, which covers approximately 100,000 square miles across Nebraska, South Dakota, Kansas, Colorado and Wyoming.
Bifenthrin combats pests, but may harm aquatic ecosystems
A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time).
Study shows water quality minimally affected in nearby streams and groundwater
Highest concentrations found in Iowa, Minnesota and Illinois.
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Locations
Kansas Water Science Center
Phone: (785) 842-9909
Fax: (785) 832-3500
Southwest Region Director's Office
Phone: 303.236.5438
Fax: 303.236.5448
Organic Geochemistry Research Laboratory (OGRL)
Phone: (785) 832-3564
Hays Field Office
Phone: (785) 623-2848
Wichita Field Office
Phone: (316) 773-3225
