Unified Interior Regions

Washington

States L2 Landing Page Tabs

Filter Total Items: 259
Mount Rainier seen from Puyallup, Washington
Date Published: March 17, 2016

Volcano Hazards Assessments Help Mitigate Disasters

The Volcano Hazards Program develops long-range volcano hazards assessments. These includes a summary of the specific hazards, their impact areas, and a map showing ground-hazard zones. The assessments are also critical for planning long-term land-use and effective emergency-response measures, especially when a volcano begins to show signs of unrest.

Mount St. Helens and Mount Rainier, northern aerial view
Date Published: March 2, 2016

Cascades Volcano Observatory (CVO)

The CVO staff conduct research on many aspects of active volcanism, respond to dangerous volcanic activity in many parts of the world, and maintain a close watch over volcanoes in Washington, Oregon and Idaho. The USGS established CVO in Vancouver, Washington, after the May 18, 1980, eruption of Mount St. Helens.

Hydrogeologic Framework, Groundwater Movement, and Water Budget
Date Published: January 1, 2016
Status: Completed

Kitsap Groundwater Model

The Issue: Groundwater provides a major source of drinking water for the population of the Kitsap Peninsula. Consequently, as the population grows, so does the demand for groundwater. However, the quantity of usable groundwater is limited, largely because the Peninsula is bounded by seawater and the potential for water-level declines and seawater intrusion increases as groundwater usage...

Contacts: Lonna M Frans
Raging River Project Location
Date Published: January 1, 2016
Status: Completed

Raging River Temperature

The Issue: Large, in-channel wood that helps to create and maintain healthy aquatic habitat in rivers throughout the Pacific Northwest was removed from many rivers in the past. In 2009, King County put wood back into the river to restore the Raging River watershed. To guide the county's restoration of the Raging River watershed, managers need to know the effect of restoration...

Lake Spokane
Date Published: January 1, 2016
Status: Active

Lake Spokane

The Issue: Phosphorus from many different sources has caused water quality problems for Lake Spokane in eastern Washington by promoting the growth of algae and aquatic plants. Phosphorus comes from municipal and industrial point-sources upstream of Lake Spokane, as well as non-point sources like septic tanks, agricultural fields, and wildlife. Lake Spokane was listed by the...

Temporary seismometer array in New York City to record ambient noise.
Date Published: May 1, 2015
Status: Completed

Seismology in the City

Release Date: May 1, 2015

How seismologists can use noise to see under the ground.

Contacts: William J Stephenson, Lisa A Wald, Steve Hartzell, Morgan Moschetti, Jack Odum, Robert Williams, David Worley
Hydrogeologic Framework and Groundwater/Surface-Water Report Cover
Date Published: January 1, 2015
Status: Completed

South Fork Nooksack River Basin Groundwater and Surface-water Interactions and Processes

High water temperatures and low instream flows during the summer have been identified as some of the key limitations for the viability of South Fork Nooksack River salmon populations including summer and spring-run Chinook salmon. Restoration strategies including the placement of engineered log jams, the restoration of floodplains and wetlands, and instream flow negotiation have been developed...

Effect of a levee setback on aquatic resources using two-dimensional flow and bioenergetics models Report Cover
Date Published: January 1, 2015
Status: Completed

White River Bioenergetics

The White River Basin is located in western Washington and drains an area of about 500 square miles. Rivers in the White River Basin are fed by melt water from glaciers on Mt. Rainier, runoff from snowmelt and rain, and groundwater discharge. Beginning in the early to mid-twentieth century, the White River from river mile (RM) 9 to its confluence with the Puyallup River was extensively...

Contacts: Robert W Black
Upper Kittitas County
Date Published: January 5, 2014
Status: Completed

Upper Kittitas County

The Issue: Baseflows in the tributary streams in the western portion of Kittitas County are important in the late summer and fall when demands on these streams peak. An ongoing USGS Yakima River basin study indicates that groundwater and surface water are interconnected, however the hydrogeologic framework and the potential impacts of groundwater withdrawals on tributary streamflow in the...

Monitoring Recharge in Areas of Seasonally Frozen Ground in the Columbia Plateau and Snake River Plain Report Cover
Date Published: January 2, 2014
Status: Completed

Recharge and frozen ground in the PNW

The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent...

Contacts: Mark Mastin
Discharge, Water Temperature, and Selected Meteorological Data for Vancouver Lake Report Cover
Date Published: January 1, 2014
Status: Completed

Vancouver Lake Nutrient Budget

The Issue: Vancouver Lake in Clark County, WA has been experiencing water quality problems for decades. Recently, harmful algal blooms have been taking place in summer resulting in closures of the lake to swimming/water contact. One potential cause of these algal blooms in the increased loading of nutrients to the lake; however, there is currently little known about the amount and timing of...

Contacts: Rich Sheibley
Estimating Low-Flow Frequency Statistics and Hydrologic Analysis of Selected Streamflow-Gaging Stations
Date Published: January 1, 2014
Status: Completed

Nooksack River Streamflow and Network Analysis

The Lummi Nation is partner to six USGS streamflow-gaging stations in the Nooksack River basin that measure streamflow in small streams. The Lummi Nation uses data from these stations to help manage its natural resources and has requested that the USGS analyze the available data record. As a result, the USGS is using streamflow data collected in and near the Nooksack River basin to develop...

Filter Total Items: 716
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Year Published: 2009

Evaluation of strobe lights to reduce turbine entrainment of juvenile steelhead (Oncorhynchus mykiss) at Cowlitz Falls Dam, Washington

We conducted a radiotelemetry evaluation to determine if strobe lights could be used to decrease turbine entrainment of juvenile steelhead (Oncorhynchus mykiss) at Cowlitz Falls Dam, Washington. We found that radio-tagged juvenile steelhead approached and entered two spillbays (one lighted, one unlighted) in equal proportions. However, the...

Kock, Tobias J.; Evans, Scott D.; Liedtke, Theresa L.; Rondorf, Dennis W.; Kohn, Mike

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Year Published: 2009

Factors affecting the age-C resident fish community along shorelines of the Hanford Reach of the Columbia River

The Hanford Reach is one of the few remaining unimpounded sections of the Columbia River. However, because of flow management at upstream dams, there are often large fluctuations in water level. To determine how environmental conditions might affect age-0 resident fishes in the Hanford Reach, we evaluated species composition, distribution,...

Gadomski, D.M.; Wagner, P.G.
Factors affecting the age-C resident fish community along shorelines of the Hanford Reach of the Columbia River; 2009; Article; Journal; Northwest Science; Gadomski, D. M.; Wagner, P. G.

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Year Published: 2009

Molecular detection of native and invasive marine invertebrate larvae present in ballast and open water environmental samples collected in Puget Sound

Non-native marine species have been and continue to be introduced into Puget Sound via several vectors including ship's ballast water. Some non-native species become invasive and negatively impact native species or near shore habitats. We present a new methodology for the development and testing of taxon specific PCR primers designed to assess...

Harvey, J.B.J.; Hoy, M.S.; Rodriguez, R.J.
Molecular detection of native and invasive marine invertebrate larvae present in ballast and open water environmental samples collected in Puget Sound; 2009; Article; Journal; Journal of Experimental Marine Biology and Ecology; Harvey, J. B. J.; Hoy, M. S.; Rodriguez, R. J.

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Year Published: 2009

Passage, survival, and approach patterns of juvenile salmonids at Little Goose Dam

No abstract available 

Beeman, J.W.; Braatz, A.C.; Fielding, S.D.; Hansel, H.C.; Brown, S.T.; George , G.T.; Haner, P.V.; Hansen, G.S.; Shurtleff, D.J.

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Year Published: 2009

Prevalence of viral erythrocytic necrosis in Pacific herring and epizootics in Skagit Bay, Puget Sound, Washington.

Epizootics of viral erythrocytic necrosis (VEN) occurred among juvenile Pacific herring Clupea pallasii in Skagit Bay, Puget Sound, Washington, during 2005-2007 and were characterized by high prevalences and intensities of cytoplasmic inclusion bodies within circulating erythrocytes. The prevalence of VEN peaked at 67% during the first epizootic...

Hershberger, P.K.; Elder, N.E.; Grady, C.A.; Gregg, J.L.; Pacheco, C.A.; Greene, C.; Rice, C.; Meyers, T.R.
Prevalence of viral erythrocytic necrosis in Pacific herring and epizootics in Skagit Bay, Puget Sound, Washington.; 2009; Article; Journal; Journal of Aquatic Animal Health; Hershberger, P. K.; Elder, N. E.; Grady, C. A.; Gregg, J. L.; Pacheco, C. A.; Greene, C.; Rice, C.; Meyers, T. R.

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Year Published: 2009

Water velocity, turbulence, and migration rate of subyearling fall Chinook salmon in the free-flowing and impounded Snake River

We studied the migratory behavior of subyearling fall Chinook salmon Oncorhynchus tshawytscha in free-flowing and impounded reaches of the Snake River to evaluate the hypothesis that velocity and turbulence are the primary causal mechanisms of downstream migration. The hypothesis states that impoundment reduces velocity and turbulence and alters...

Tiffan, Kenneth F.; Kock, Tobias J.; Haskell, Craig A.; Connor, William P.; Steinhorst, R. Kirk
Tiffan, K.F., T.J. Kock, C.A. Haskell, W.P. Connor, and R.K. Steinhorst. 2009. Water velocity, turbulence, and migration rate of subyearling fall Chinook salmon in the free-flowing and impounded Snake River. Trans Am. Fish. Soc. 138(2): 373-384. DOI:10.1577/T08-051.1. http://www.tandfonline.com/doi/full/10.1577/T08-051.1

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Year Published: 2008

Landslides and engineering geology of the Seattle, Washington, area

This volume brings together case studies and summary papers describing the application of state-of-the-art engineering geologic methods to landslide hazard analysis for the Seattle, Washington, area. An introductory chapter provides a thorough description of the Quaternary and bedrock geology of Seattle. Nine additional chapters review the history...

Baum, Rex L.; Godt, Jonathan W.; Highland, Lynn M.
Landslides and engineering geology of the Seattle, Washington, area; 2008; Book; 20; Edited by Baum, Rex L.; Godt, Jonathan W.; Highland, Lynn M.

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Year Published: 2008

Modeling landslide recurrence in Seattle, Washington, USA

To manage the hazard associated with shallow landslides, decision makers need an understanding of where and when landslides may occur. A variety of approaches have been used to estimate the hazard from shallow, rainfall-triggered landslides, such as empirical rainfall threshold methods or probabilistic methods based on historical records. The wide...

Salciarini, Diana; Godt, Jonathan W.; Savage, William Z.; Baum, Rex L.; Conversini, Pietro
Modeling landslide recurrence in Seattle, Washington, USA; 2008; Article; Journal; Engineering Geology; Salciarini, Diana ; Godt, Jonathan W.; Savage, William Z.; Baum, Rex L.; Conversini, Pietro

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Year Published: 2008

Seasonal and diel movements of white sturgeon in the lower columbia river

Continuous monitoring of the movements and depths used by white sturgeon Acipenser transmontanus with acoustic telemetry technologies in the lower Columbia River provided information on diel and seasonal migrations, local movements, and site fidelity. White sturgeon moved to shallower water at night and showed greater activity, inferred from rates...

Parsley, M.J.; Popoff, N.D.; Van Der Leeuw, B. K.; Wright, C.D.
Seasonal and diel movements of white sturgeon in the lower columbia river; 2008; Article; Journal; Transactions of the American Fisheries Society; Parsley, M. J.; Popoff, N. D.; Van Der Leeuw, B. K.; Wright, C. D.

Filter Total Items: 859
Juvenile steelhead smolts
July 7, 2016

Juvenile steelhead smolts

Juvenile steelhead smolts become silvery and scales become loose as they transition into their seawater life history stages.

Research team in the Northern Cascades.
July 7, 2016

USGS - NOROCK Research team in the Northern Cascades.

USGS - NOROCK field team in the Northern Cascades studying Hoary marmots and American pika and snowpack dynamics.  

June 15, 2016

Catching the Quakes

USGS Research Geophysicist Kate Allstadt conducts experiments at the U.S. Geological Survey debris-flow flume, near Eugene, Oregon. Dr. Allstadt and her group are working toward an understanding of how debris flows generate seismic signals. The quantitative information will be used in the development of improved technologies for detecting debris flows to mitigate their

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Mount St. Helens earthquake record during times of magma recharge....
May 4, 2016

Mount St. Helens earthquake record during times of magma recharge.

The top plot is the number of located earthquakes per week from the Pacific Northwest Seismic Network's catalog. The bottom plot shows the earthquake depths with time. Earthquakes are plotted as circles with the size of the circle corresponding to the magnitude of the earthquake (see legend). Both plots show the time period from 1987 to September 2004, and 2008 to May 4

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Earthquakes at Mount St. Helens from March 14, 2016 through May 4, ...
May 4, 2016

Earthquakes at Mount St. Helens from Mar. 14, 2016 - May 4, 2017

Map view plot of earthquakes located by the Pacific Northwest Seismic Network from March 14, 2016 through May 4, 2016. Only high-quality locations are shown (8 or more observations with a 130 degree gap or less between observing stations).

USGS-CVO crew digs out Mount St. Helens' September Lobe monitoring ...
March 30, 2016

USGS-CVO crew digs out Mount St. Helens' Sep. Lobe monitoring station.

During the first few days of Mount St. Helen's earthquake swarm in March 2016, the September Lobe monitoring station (located on the 1980-86 dome) was buried in deep snow and not transmitting data. USGS-Cascades Volcano Observatory Technicians Kelly Swinford and Amberlee Darold dug out the station on March 30, restoring data flow and improving our ability to monitor the

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Photo of Tidal marsh
March 18, 2016

Tidal marsh, Billy Frank Jr. Nisqually National Wildlife Refuge, WA.

A tidal marsh at Billy Frank Jr. Nisqually National Wildlife Refuge, WA.

Group of women and girls looking at Mount St. Helens in the distance
December 31, 2015

USGS scientist and GeoGirls viewing Mount St. Helens

USGS scientists Kate Allstadt and Cynthia Gardner tell the story of the May 18, 1980 eruption of Mount St. Helens and how the catastrophic landslide, lateral blast, and lahar changed the landscape.

mountain scenery with bare rock in left foreground, and river and forest in distance
December 31, 2015

Headscarp of Red Bluffs Landslide Overlooking Crescent Lake Landslide

View out over the Crescent Lake landslide from the headscarp (left foreground) of the Red Bluffs landslide, looking toward Stevenson, Washington and the Columbia River.

Female scientist and young girls looking at scientific equipment
December 31, 2015

USGS scientist and GeoGirls looking at portable seismograph

USGS research geophysicist Kate Allstadt assists GeoGirls in deploying seismometers at Mount St. Helens. The girls collected the seismometers two days later and analyzed the earthquake information recorded by the instruments.

Large map at top shows the study area bathymetry, four smaller maps below show the detail at locations from larger map.
December 30, 2015

Bathymetry data of Columbia River mouth

Bathymetry data of Columbia River mouth, derived from an interferometric swath bathymetry systems survey in 2013. A) Swath map of data; B-E) sample detail pull-outs

Filter Total Items: 372
USGS science for a changing world logo
February 24, 2014

An increase in the barred owl population is contributing to the decline of threatened Northern spotted owls, according to models developed by U.S. Geological Survey and U.S. Forest Service scientists.

Digital Surface Watersheds superimposed along the U.S. and Candian International Boundary on satellite image of North America.
February 19, 2014

Clearer views of waters along the U.S. and Canadian border are now possible with new seamless digital maps. These maps make it easier to solve complex water issues that require a thorough understanding of drainage systems on both sides of the International Boundary.

Map showing the National scenic trails throughout the contiguous United States
February 12, 2014

Newly released US Topo maps  for Washington now feature segments of thePacific Crest and Pacific Northwest National Scenic Trails. 

Image: New River-Mouth Delta
February 11, 2014

As the largest dam-removal project in history moves into its third year, scientists from the U.S. Geological Survey released a new report that documents the movement of sediment down the Elwha River in Washington State.

USGS
February 4, 2014

Pedestrian evacuation modeling by USGS geographers Nathan Wood and Jeanne Jones and Sacramento State University is featured in a story about vertical evacuation refuges in southwest Washington for the February 2014 issue of National Geographic magazine.

Image: Salmon Conservation Efforts Honored
January 16, 2014

Today the Pacific Northwest Aquatic Monitoring Partnership (PNAMP) was recognized for its conservation achievements focused on federally listed salmon species. The partnership was selected for a "Partnership in Conservation" award because it improves the scientific foundation for natural and cultural resource management and advances government-to-government relationship with Indian nations.

USGS science for a changing world logo
January 15, 2014

Twenty years ago this week an earthquake struck Northridge, Calif., killing 57 people and revealing a serious defect in a common type of mid-rise building. A new study by U.S. Geological Survey and Caltech engineers, shows that these mid-rise buildings with fracture-prone welds in their steel frames are much more dangerous than they would be if they met current standards.

Image: Low-Flying Airplane Maps New Madrid Zone
January 3, 2014

Preliminary interpretations of a recent geophysical survey confirm the presence of earthquake faults and reveal the possibility of previously unknown faults beneath the greater Spokane area.

USGS
December 31, 2013

Preliminary interpretations of a recent geophysical survey confirm the presence of earthquake faults as well as reveal the possibility of previously unknown faults beneath the greater Spokane area. 

USGS
December 19, 2013

Secretary of the Interior Sally Jewell announced today that Interior’s Northwest Climate Science Center is awarding nearly $1.3 million to universities and other partners for research to assist Native Americans and federal and state land managers plan for and adapt to climate change.

Acoustic Flow Monitor Records Small Debris Surges on the South Fork...
December 16, 2013

On September 28, after about 10 hours of steady rain, an acoustic flow monitor (AFM) on the South Fork Toutle River recorded the passage of small debris flows.