Images

USGS Cascades Volcano Observatory Geophysicist Emily Montgomery-Brown uses a drill to create a small hole in volcanic rock that will support a GPS mast. The effort was part of a three-station installation project at Mount Hood in 2020. This station location is called BRSP.

Volcano Disaster Assistance Program Geophysicist Jeremy Pesicek digs a hole for a seismometer at station BRSP, on the north flank of Mount Hood. The seismometer, which detects earthquakes, is buried at a depth of at least 1 meter (3 feet).

The USGS Cascades Volcano Observatory installed an 8-station seismic monitoring network at Newberry volcano in 2011, which includes station KWBU.

Cableway on North Santiam River at Niagara, Oregon (Site number 14181500)

Stream gage on McKenzie River near Vida, Oregon (Site number 14162500) 

Stream gage on Blue River at Blue River, Oregon, (Site number 14162200)

Stream gage on South Fork McKenzie River near Rainbow, Oregon (Site number 14159500)

Bathymetric map of offshore Oregon with Stonewall, Heceta, and Siltcoos Banks labeled.

Topo-bathymetric map of the Cascadia subduction zone. Cascadia megathrust fault (white line); approximate shelf break along 200-m isobath (yellow line); MTJ, Mendocino triple junction.

Index map of U.S. Cascadia margin showing where data have been collected since 2018 as part of the Subduction Zone Marine Geohazards Project. Details of each survey effort are provided on the Cascadia Subduction Zone Marine Geohazards project web site.

Scientists use a MultiGAS instrument (gray, hard-shell case) to measure gas compositions from the East Lake hot spring in the Newberry caldera. The photo was taken on August 3, 2020 just after sunrise. The vapor above the hot spring and lake is typical for cool mornings and is not visible later in the day.

Photo of surf zone offshore of Fort Stevens State Park taken from the Columbia River South Jetty observation deck.

The west coast of the United States showing locations of EXPRESS ship-based multibeam surveys, ROV dives, AUV dives, and sediment samples. Red boxes show locations of close-up views of multibeam bathymetry in Figures 2 and 3.

Crater Lake, in south-central Oregon, is the deepest lake in the United States and was formed in the remains of an ancient volcano. The lake is widely known for its intense blue color and spectacular views.

Capital Salem

Image Source Landsat 8

Population 4,237,256

Topography and bathymetry of southern Cascadia, which includes southern Oregon and northern California (seafloor depths between 200 and 3000 m are shown in the spectrum color scale from red (shallower) to purple (deeper). The land and continental shelf are shown in grayscale slope shading where darker colors represent steeper slopes.

This is a view of a USGS surface water stream gage that contains equipment to monitor discharge at the Williamson River below the Sprague Ruver in Chiloquin, Oregon. The gage house contains a historic stilling well and a device that records the level of water. It also has a water temerature sensor and a turbidimeter.

The USGS Cascades Volcano Observatory installed monitoring station ASBU near Newberry volcano in central Oregon in 2011.

The crew of research vessel Bold Horizon with USGS science crew prepare to launch the Chirp sub-bottom profiler off the west coast near northern California and southern Oregon.

After recovery, the jumbo piston corer sits on the deck of research vessel Bold Horizon in its launch and recovery system. This muddy collar is removed to reveal the removable length of the core, which sits within a stiff plastic tube inside the metal tube.

USGS marine technician Jenny McKee prepares the jumbo piston corer for launching off research vessel Bold Horizon off the coast of California and Oregon. The corer will collect sediment samples from the seafloor. Scientists will examine the sediment to determine its age, character, and distribution. This area off the west coast of the U.S.

USGS chirp sub-bottom profiler on the deck of the R/V Rachel Carson leaving Newport, OR.