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Images related to natural hazards.

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image related to volcanoes. See description
Another view of the 'island', with a small steam plume indicating where incandes
Another view of the 'island', with a small steam plume indicating where incandes
Glacier Peak, Washington simplified hazards map
Glacier Peak, WA simplified hazards map
Glacier Peak, WA simplified hazards map
Glacier Peak, WA simplified hazards map

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

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 i...
Mount Shasta, CA simplified hazards map
Mount Shasta, CA simplified hazards map
Mount Shasta, CA simplified hazards map

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, Californ...
Lidar images of Shastina cone, west flank of Mount Shasta, CA. Deta...
Lidar images of Shastina cone, west flank of Mount Shasta, CA. Deta...
Lidar images of Shastina cone, west flank of Mount Shasta, CA. Deta...

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
Bottom simulating reflector
Bottom simulating reflector
Bottom simulating reflector

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.

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.

Tim Elfers watches the incoming waves while conducting a bathymetric survey of the nearshore in Santa Cruz, California.
Conducting Bathymetric Surveys
Conducting Bathymetric Surveys
Conducting Bathymetric Surveys

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

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

map of iPlover study sites
iPlover Study Sites
iPlover Study Sites
iPlover Study Sites

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.

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.

peat auger core collected from the back-barrier marsh of Assateague Island
Peat auger core collected from the back-barrier marsh of Assateague Is
Peat auger core collected from the back-barrier marsh of Assateague Is
Peat auger core collected from the back-barrier marsh of Assateague Is

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).

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 t...
This compares a normal photograph of the active flow front with a t...
This compares a normal photograph of the active flow front with a t...
This compares a normal photograph of the active flow front with a t...

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.

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.

Preview image of multi-channel seismic data collected by the USGS
Multi-channel seismic data preview image
Multi-channel seismic data preview image
Multi-channel seismic data preview image

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.

A cross-section of earth's crust reveals the layered sediment and features of earthquake faults.
Seismic reflection profile
Seismic reflection profile
Seismic reflection profile

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.

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.

Man standing in very shallow water holds a drill and is leaning over while he secures an instrument onto the reef flat.
Securing an instrument mount on reef flat, Roi-Namur Island
Securing an instrument mount on reef flat, Roi-Namur Island
Securing an instrument mount on reef flat, Roi-Namur Island

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.

Lassen Volcanic Center, California simplified hazards map showing p...
Lassen Volcanic Center, CA simplified hazards map
Lassen Volcanic Center, CA simplified hazards map
Lassen Volcanic Center, CA simplified hazards map

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

Map illustration shows the seafloor surface in a 3-D fashion.
Shaded-relief bathymetry data
Shaded-relief bathymetry data
Shaded-relief bathymetry data

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

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
Perspective lidar view of coastal bathymetry at St. Thomas, USVI
Perspective lidar view of coastal bathymetry at St. Thomas, USVI
Perspective lidar view of coastal bathymetry at St. Thomas, USVI

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.

USGS ATV is equipped with GPS and collects topographic (elevation) data on Seacliff Beach, Aptos, CA
USGS ATV Collecting Topographic Data
USGS ATV Collecting Topographic Data
USGS ATV Collecting Topographic Data

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

Colored shaded-relief bathymetry map of offshore of Half Moon Bay California
Offshore of Half Moon Bay
Offshore of Half Moon Bay
Offshore of Half Moon Bay

Map view. Colored shaded-relief bathymetry map of Offshore of Half Moon Bay map area, generated from multibeam echosounder data. Colors show depth: reds and oranges indicate shallower areas; light blues, deeper areas. Illumination azimuth is 300°, from 45° above horizon.

Map view. Colored shaded-relief bathymetry map of Offshore of Half Moon Bay map area, generated from multibeam echosounder data. Colors show depth: reds and oranges indicate shallower areas; light blues, deeper areas. Illumination azimuth is 300°, from 45° above horizon.

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