Unified Interior Regions

Region 9: Columbia-Pacific Northwest

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Northern spotted owl perched on a tree branch
July 2, 2014

Spotted Owl

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Nisqually Delta eelgrass
June 12, 2014

Nisqually Delta eelgrass

Close-up image of Nisqually Delta eelgrass.

June 10, 2014

Water Temp Modeling Animation: Middle Fork Willamette River Reservoirs

CE-QUAL-W2 temperature model animation of Hills Creek, Lookout Point, and Dexter Reservoirs on the Middle Fork Willamette River. Data are modeled for calendar year 2011. For supporting information, see http://pubs.usgs.gov/of/2013/1186/. For supplemental and contact information, see

June 9, 2014

Water Temp Modeling Animation: Middle Fork Willamette

CE-QUAL-W2 temperature model animation of Hills Creek, Lookout Point, and Dexter Lakes on the Middle Fork Willamette River.

A volcano monitoring “spider” deployed by helicopter to the Oso landslide to track ground movement and seismicity
June 4, 2014

A volcano monitoring “spider” deployed to the Oso landslide

A volcano monitoring “spider” was deployed by helicopter to the Oso landslide to track ground movement and seismicity while search-and-rescue operations were ongoing.  The spider was equipped with a seismometer (mounted on the far left leg) to track ground shaking and GPS (a dome-shaped instrument on the upper mast) to track subtle ground movement.  Data was transmitted

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Image: Central Idaho Debris Flow
May 27, 2014

Central Idaho Debris Flow

During August 2013, the Beaver Creek wildfire burned more than 114,000 acres in south-central Idaho. Shortly after the fire was contained, heavy rainfall triggered numerous debris flows, including this one in Badger Gulch. USGS hydrologists Dave Evetts (left) and Jake Jacobson examine the debris flow while in the burn area to install precipitation gages. The gages will be

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Image: Norrth Fork Big Wood River, Idaho
May 4, 2014

Norrth Fork Big Wood River, Idaho

The Big Wood River flows through communities of the Wood River Valley of south-central Idaho. It is one of eight sites at which the USGS is conducting an ecological assessment during the summer of 2014. Study results will be published in 2015.

Image: Warm Springs Creek, Idaho
May 4, 2014

Warm Springs Creek, Idaho

Warm Springs Creek is a tributary of the Big Wood River in south-central Idaho. It is one of eight sites at which the USGS is conducting an ecological assessment during the summer of 2014. Study results will be published in 2015.

Image: Big Wood River, Idaho
May 4, 2014

Big Wood River, Idaho

The Big Wood River flows through communities of the Wood River Valley of south-central Idaho. It is one of eight sites at which the USGS is conducting an ecological assessment during the summer of 2014. Study results will be published in 2015.

Image: Water-Quality Study in Historical Idaho Mining District
April 23, 2014

Water-Quality Study in Historical Idaho Mining District

USGS Hydrologic Technician Alvin Sablan prepares to check USGS streamgage 13310850 on Meadow Creek in the historical Stibnite Mining District of central Idaho. Data from the streamgage were used in a USGS water-quality study in the area.

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USGS science for a changing world logo
May 8, 2001

There has been a slight swelling, or uplift, of the ground surface over a broad area of central Oregon, centered five kilometers, or three miles, west of the South Sister volcano in Three Sisters region of the Oregon Cascade Range, according to scientists at the U.S. Geological Survey. 

USGS
May 8, 2001

There has been a slight swelling, or uplift, of the ground surface over a broad area of central Oregon, centered five kilometers, or three miles, west of the South Sister volcano in Three Sisters region of the Oregon Cascade Range, according to scientists at the U.S. Geological Survey. 

USGS science for a changing world logo
April 18, 2001

In early February the program for this year’s annual meeting of the Seismological Society of America was finalized, with several papers and posters that addressed the potential for large earthquakes in the Puget Sound area of Washington.

USGS science for a changing world logo
April 18, 2001

Following the great 1906 San Francisco earthquake, a large number of distant aftershocks or triggered earthquakes occurred much farther away from the fault than previously realized, according to scientists at the U.S. Geological Survey.

USGS science for a changing world logo
April 18, 2001

The most common information available immediately following an earthquake is the location and magnitude. However, what scientists really want to know is where the shaking was felt, and in the case of emergency response, where it shook the most. Two new systems can now answer these questions within minutes following an earthquake. Both are available on the Internet.

USGS
April 18, 2001

In early February the program for this year’s annual meeting of the Seismological Society of America was finalized, with several papers and posters that addressed the potential for large earthquakes in the Puget Sound area of Washington.

USGS
April 18, 2001

Following the great 1906 San Francisco earthquake, a large number of distant aftershocks or triggered earthquakes occurred much farther away from the fault than previously realized, according to scientists at the U.S. Geological Survey.

USGS science for a changing world logo
April 16, 2001

On the 95th anniversary of the great San Francisco earthquake, scientists from the U.S. Geological Survey will join their colleagues in the Seismological Society of America (SSA) to discuss new findings on the 1906 earthquake that devastated San Francisco; the Nisqually earthquake that lightly slapped the Seattle-Tacoma area six weeks ago; and several other large earthquakes.

USGS science for a changing world logo
March 2, 2001

Advanced seismic monitoring, long term research, a commitment to hazard preparedness and mitigation and some good luck all played a role in ensuring that yesterday’s earthquake near Seattle was not more devastating.

USGS
March 2, 2001

Advanced seismic monitoring, long term research, a commitment to hazard preparedness and mitigation and some good luck all played a role in ensuring that yesterday’s earthquake near Seattle was not more devastating.

USGS science for a changing world logo
March 1, 2001

A minor aftershock struck the Seattle area early Thursday morning, March 1, 2001. The aftershock, which struck at 1:10 a.m. local time, had a preliminary magnitude of 3.4 and was felt throughout the Seattle-Tacoma-Olympia area.

USGS
March 1, 2001

A minor aftershock struck the Seattle area early Thursday morning, March 1, 2001. The aftershock, which struck at 1:10 a.m. local time, had a preliminary magnitude of 3.4 and was felt throughout the Seattle-Tacoma-Olympia area.