Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Images related to natural hazards.
Conceptual diagram showing the structure of the Bayesian network used to assess potential sea-level rise impacts on the coastal landscape.
Conceptual diagram showing the structure of the Bayesian network used to assess potential sea-level rise impacts on the coastal landscape.
Problem statement, objectives, and alternative actions defined by Department of Interior collaborators using structured decision making framework
Problem statement, objectives, and alternative actions defined by Department of Interior collaborators using structured decision making framework
Yellowstone subsurface cross-section schematic oriented SW-NE, depicts rise of magma beneath mantle plus heating and movement of mantle and crustal material. Credit Univ Utah. Click to enlarge.
Yellowstone subsurface cross-section schematic oriented SW-NE, depicts rise of magma beneath mantle plus heating and movement of mantle and crustal material. Credit Univ Utah. Click to enlarge.
The November 25, 2015, breakout that began as a rupture from the tube supplying the June 27th lava flow advanced slowly to the northeast of Pu‘u ‘Ō‘ō (background) and reached the forest in mid-December, but still poses no immediate threat to Puna communities. USGS image.
The November 25, 2015, breakout that began as a rupture from the tube supplying the June 27th lava flow advanced slowly to the northeast of Pu‘u ‘Ō‘ō (background) and reached the forest in mid-December, but still poses no immediate threat to Puna communities. USGS image.
Illustration of the NIMBBLE (New instrument for making bottom boundary layer evaluations). The NIMBBLE is a low-profile platform with two acoustic Doppler velocimeters and an upward-looking acoustic Doppler profilers.
Illustration of the NIMBBLE (New instrument for making bottom boundary layer evaluations). The NIMBBLE is a low-profile platform with two acoustic Doppler velocimeters and an upward-looking acoustic Doppler profilers.
USGS staff and the ship's crew of the R/V Sharp prepare to deploy a deep-water multibeam echosounder during a mapping program in the mid-Atlantic in 2015.
USGS staff and the ship's crew of the R/V Sharp prepare to deploy a deep-water multibeam echosounder during a mapping program in the mid-Atlantic in 2015.
Science crew aboard R/V Marcus G. Langseth. Ray Sliter (Pacific Coastal and Marine Science Center) and Deb Hutchison (Woods Hole Coastal and Marine Science Center) shown at far left.
Science crew aboard R/V Marcus G. Langseth. Ray Sliter (Pacific Coastal and Marine Science Center) and Deb Hutchison (Woods Hole Coastal and Marine Science Center) shown at far left.
Photo showing the complex geomorphology of the marsh landscape of the Grand Bay National Wildlife Refuge/Grand Bay National Estuarine Research Reserve in coastal Alabama and Mississippi. (1) Geology—a tidal creek that at lower sea level than present served as a distributary channel of a river-delta system. (2) Hydrodynamics—wave erosion of the marsh edge.
Photo showing the complex geomorphology of the marsh landscape of the Grand Bay National Wildlife Refuge/Grand Bay National Estuarine Research Reserve in coastal Alabama and Mississippi. (1) Geology—a tidal creek that at lower sea level than present served as a distributary channel of a river-delta system. (2) Hydrodynamics—wave erosion of the marsh edge.
Stop sign at the end of School House Hill Rd in Turner, Maine near USGS gaging station 01055500 on the Nezinscot River.
Stop sign at the end of School House Hill Rd in Turner, Maine near USGS gaging station 01055500 on the Nezinscot River.
Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast
Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley location map
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley location map
Near vertical (top, middle) and low angle oblique (bottom) aerial photographs of Bear Inlet, North Carolina. View looking northwest along the North Carolina shore. High waves and storm surge from Hurricane Joaquin eroded the beaches, moving sand inland (green arrow) and reshaping the flood-tidal shoals.
Near vertical (top, middle) and low angle oblique (bottom) aerial photographs of Bear Inlet, North Carolina. View looking northwest along the North Carolina shore. High waves and storm surge from Hurricane Joaquin eroded the beaches, moving sand inland (green arrow) and reshaping the flood-tidal shoals.
Aerial images of the wilderness breach: a) Aerial photograph taken several days after Hurricane Sandy (photo credit: NOAA); b) Aerial mosaic of the breach in June 2015 showing the location of erosion on the ocean side of the breach and deposition that results in the seasonal formation of a spit (photo credit: Stonybrook University).
Aerial images of the wilderness breach: a) Aerial photograph taken several days after Hurricane Sandy (photo credit: NOAA); b) Aerial mosaic of the breach in June 2015 showing the location of erosion on the ocean side of the breach and deposition that results in the seasonal formation of a spit (photo credit: Stonybrook University).
Coastal area within the North Atlantic Landscape Conservation Cooperative region for which predictions have been generated.
Coastal area within the North Atlantic Landscape Conservation Cooperative region for which predictions have been generated.
Minipod style tripod for near bottom current and wave measurements ready for deployment.
Minipod style tripod for near bottom current and wave measurements ready for deployment.
These clams (Calyptogena spp.) were discovered in about 1000 meter-deep waters off the southern tip of Alaska near a 250-meter-high cone rising from the seafloor and 10 kilometers from the Queen Charlotte-Fairweather fault.
These clams (Calyptogena spp.) were discovered in about 1000 meter-deep waters off the southern tip of Alaska near a 250-meter-high cone rising from the seafloor and 10 kilometers from the Queen Charlotte-Fairweather fault.
Seafloor trace of the Queen Charlotte-Fairweather fault (from top left to bottom right) offsets the edge of the Yakobi Sea Valley off southeast Alaska. This 700-mile-long fault has generated large earthquakes in the past. Future shocks—and tsunamis—could threaten coastal communities in the U.S. and Canada. (Color-coded depths, in meters, were mapped in 2015.)
Seafloor trace of the Queen Charlotte-Fairweather fault (from top left to bottom right) offsets the edge of the Yakobi Sea Valley off southeast Alaska. This 700-mile-long fault has generated large earthquakes in the past. Future shocks—and tsunamis—could threaten coastal communities in the U.S. and Canada. (Color-coded depths, in meters, were mapped in 2015.)
Sandy Brosnahan transporting a weather buoy into the Woods Hole Coastal and Marine Science Center’s operational facility in preparation for deployment. This buoy was one of 6 deployed to measure wind speed, direction, pressure, and temperature off the coast of Fire Island, NY.
Sandy Brosnahan transporting a weather buoy into the Woods Hole Coastal and Marine Science Center’s operational facility in preparation for deployment. This buoy was one of 6 deployed to measure wind speed, direction, pressure, and temperature off the coast of Fire Island, NY.
Tsunami evacuation route sign at an intersection in Nehalem, Oregon.
Tsunami evacuation route sign at an intersection in Nehalem, Oregon.
USGS scientists Paul Rydlund, Eric Looper and Jason Carron dock the boat and coordinate with emergency managers.
USGS scientists Paul Rydlund, Eric Looper and Jason Carron dock the boat and coordinate with emergency managers.
The sun angle was ideal this morning to show the complex texture on the surface of the lava lake in Halema‘uma‘u Crater at Kīlauea's summit. Spattering was active in the southeast portion of the lake. For scale, the lake is about 230 meters or 755 feet across.
The sun angle was ideal this morning to show the complex texture on the surface of the lava lake in Halema‘uma‘u Crater at Kīlauea's summit. Spattering was active in the southeast portion of the lake. For scale, the lake is about 230 meters or 755 feet across.