Images

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

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

A scientist takes field notes on glacier mass change after measuring an ablation stake installed on the surface of South Cascade Glacier, Washington.

Sunset illuminates Sentinel Peak in the Cascade Range above South Cascade Glacier. Bright white seasonal snow is visible along the upper right flank of the glacier and banded bare ice is exposed toward the glacier terminus.

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

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

Bathymetric map of offshore Washington reveals seafloor features and submarine canyons.

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.

Interior of the SNIF multi-GAS enclosure on Mount St. Helens, Washington

USGS scientist Laura Clor performing maintenance on the SNIF multi-GAS station on Mount St. Helens, Washington.

View looks southwest along the eastern flank of the Elwha River delta and back towards the mouth of the river. USGS conducts regular surveys along this stretch of coastline, to monitor the evolving coastline following removal of the Elwha and Glines Canyon Dams, completed in 2014.

You have to be able to have a little fun when in the field. A colleague from the Washington State Department of Ecology hams it up while prepping for a beach survey with scientists from the USGS Pacific Coastal and Marine Science Center.

White-nose syndrome has been detected in Washington. USGS scientist are helping the NPS design and evaluate bat sampling protocols for their Pacific Northwest parks.

USGS-Cascades Volcano Observatory geophysicist Rebecca Kramer works on station PR05, which is part of the Mount Rainier lahar detection network (Mount Rainier is pictured in the distance). The purpose of the site visit was to upgrade the power system and deploy infrasound equipment. 

Skagit River in the North Cascades, Washington. Stumps left by logging are visible among the wetland vegetation. The USGS monitors water quality near this site.

Aerial map of modeling area in the Nisqually River Delta. Managed freshwater marsh at the southern end of the refuge is excluded. Inset: Black point on terrain map shows the location of Billy Frank Jr. Nisqually National Wildlife Refuge within Washington State (grey outline).

The tidal forests of the Nisqually River Delta become inundated to just below the trunk during the highest tides of the year.

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.

USGS marine engineering technician Dan Powers from the USGS Pacific Coastal and Marine Science Center retrieves the GOMEX box corer from Bellingham Bay, Washington.

USGS scientists Dan Powers (left) and Andy Ritchie retrieving a core sample from beneath Lake Ozette aboard research vessel Hadai.