Cascades Volcano Observatory

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Geophysicist checks data output at Mount Rainier station
October 9, 2020

Geophysicist checks data output at Mount Rainier station

A seismologist with the Cascades Volcano Observatory checks the data output on a newly installed monitoring station at Mount Rainier.

Station PARA at Mount Rainier
October 8, 2020

Mount Rainier's seismic and infrasound station PARA

Seismic and infrasound station PARA, installed October 6-8, 2020 at Mount Rainier.

Geophysicist takes notes after installing a seismometer at Mount Rainier
October 6, 2020

A geophysicist notes location of new seismometer at Mount Rainier

A geophysicist from the Cascades Volcano Observatory notes the location of a newly buried seismometer at station PARA, on Mount Rainier.

NAGT intern installs an infrasound array at Mount Rainier
October 6, 2020

NAGT intern installs infrasound sensors at Mount Rainier

NAGT intern Emily Bryant installs one of three infrasound sensors at volcano monitoring station PARA, at Mount Rainier.

Volcano monitoring station BRSP, on the north flank of Mount Hood
October 1, 2020

Volcano monitoring station BRSP, on the north flank of Mount Hood

View of the combined seismic/GPS station BRSP, on the north flank of Mount Hood, Oregon. Mount Hood is pictured in the distance.

Finishing the installation of seismic/GPS station YOCR, at Mount Hood
October 1, 2020

Finishing the installation of seismic/GPS station YOCR, at Mount Hood

A USGS Cascades Volcano Observatory field team finishes the installation of the combined seismic/GPS station, YOCR, at Mount Hood, Oregon.

Seismic/GPS station YOCR, at Mount Hood
October 1, 2020

Seismic/GPS station YOCR, at Mount Hood

A Cascades Volcano Observatory field team completes the installation of the combined seismic/GPS station YOCR, at Mount Hood. Effective monitoring requires a geographically distributed network of instruments that are located on the upper flanks, and around the volcano, and for these stations to be in place before significant unrest occurs to catch the earliest subtle

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GPS mast installed at station LSON, on Mount Hood
October 1, 2020

CVO geophysicist installs a GPS mast at station LSON, Mount Hood

USGS Cascades Volcano Observatory Geophysicist Rebecca Kramer works on the installation of the GPS mast at new station LSON, at Mount Hood. The GPS measures subtle ground deformation that can occur in response to magma entering or leaving the magma reservoir several miles below the summit.

Combined seismic/GPS station LSON on Mount Hood
October 1, 2020

Combined seismic/GPS station LSON on Mount Hood

Combined seismic/GPS station LSON, on Mount Hood, installed at the end of September 2020. LSON is one of three new stations that enhance the existing monitoring network at this high-threat volcano.

Helicopter delivers equipment to station BRSP on Mount Hood
September 30, 2020

Helicopter delivers equipment to station BRSP on Mount Hood

A USGS Cascades Volcano Observatory field team waits on this remote north flank of Mount Hood, as a helicopter delivers supplies and equipment to station BRSP. The station was installed with minimal impact on the environment. A helicopter delivered equipment via external sling load and USGS personnel accessed the site by foot.

Installing a seismometer at station BRSP on Mount Hood
September 30, 2020

Installing a seismometer at station BRSP on Mount Hood

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).

New seismic/GPS station (LSON) installed at Mount Hood
September 30, 2020

New seismic/GPS station (LSON) installed at Mount Hood

USGS Cascades Volcano Observatory Geophysicist Wes Thelen, removes ropes from new station LSON, at Mount Hood (Mount Hood is pictured in the distance). The fiberglass hut, delivered by helicopter, will house a power supply, data digitizer and other equipment necessary to collect and send seismic and GPS data to the Cascades Volcano Observatory and their monitoring partners

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