Images

Fractures define the perimeter of a new, smaller crater within Pu‘u ‘Ō‘ō. Light-colored areas are parts of the original cinder-and-spatter cone that have not been buried by lava flows. USGS photo.

Another view of the 'island', with a small steam plume indicating where incandescent lava is entering the ocean.

USGS scientist Tim Elfers conducts a bathymetric (depth) survey from a personal watercraft with onboard GPS and echo sounder equipment, in Santa Cruz, California.

Locations of the 97 beaches and barrier islands where our partners used the iPlover app to collect and record information on landcover characteristics at piping plover nesting locations during the breeding seasons of 2014-2016.

A peat auger core collected from the back-barrier marsh of Assateague Island, Maryland. An inorganic-rich layer found at the top of the core was delivered to the marsh via Hurricane Sandy. Visual contrast in sediment down-core reveal similar layers as that observed at the top of the core (i.e., Hurricane Sandy layer).

This compares a normal photograph of the active flow front with a thermal image. The photograph has been cropped and rotated to approximate the perspective of the thermal image. The thermal image shows that small breakouts were present immediately behind the leading tip of the flow and farther upslope, indicated by the white and yellowish pixels.

Seining a heavily bullfrog populated side channel at Two Moon County Park in Billings, MT.

USGS researcher drills an instrument mount into a reef flat on Roi-Namur Island, Kwajalein Atoll, Republic of the Marshall Islands, in the Pacific Ocean. Photo by USGS.

Inundated marsh at Forsythe National Wildlife Refuge, New Jersey.

Lassen Volcanic Center, California simplified hazards map showing potential impact area for ground-based hazards during a volcanic event.

R/V Marcus G. Langseth entering NY Harbor

State-of-the-art multibeam and bathymetric sidescan sonar systems collect high-resolution bathymetry and acoustic backscatter data.

Perspective view of coastal bathymetry looking onshore, St. Thomas, US Virgin Islands, mapped using lidar and depicted with false-color, showing detailed submerged features, including coral reefs.

Glacier Peak, Washington simplified hazards map showing potential impact area for ground-based hazards during a volcanic event.

Mount Shasta, California simplified hazards map showing potential impact area for ground-based hazards during a volcanic event.

Lidar images of Shastina cone, west flank of Mount Shasta, California. Details of lava flows and other surficial features are best seen in the image to the right with vegetation removed.

Bottom simulating reflector imaged in 2014 by the USGS along a seismic line acquired south of Hudson Canyon during the Extended Continental Shelf cruise.  Image provided by D. Hutchinson and reproduced from USGS Fact Sheet 3080.

Visualization of hydrodynamics around seagrass patch.

Preview image of multi-channel seismic data collected by the USGS off the US Seaboard Atlantic as part of the US Extended Continental Shelf project.

Example of a deep-penetration multichannel seismic-reflection profile collected offshore of San Mateo County, from the USGS National Archive of Marine Seismic Surveys (NAMSS). The profile shows a cross-section of the earth's crust from the surface down to a depth of about 3 kilometers.

Photograph shows a USGS ATV equipped with GPS, ready to collect topographic data on Seacliff Beach in Aptos, California.