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Images related to natural hazards.
Color-shaded topographic relief map of the Yellowstone Plateau-Snake River Plain volcanic province showing the track of the Yellowstone hot spot. Figure by Ken Pierce and Lisa Morgan.
Color-shaded topographic relief map of the Yellowstone Plateau-Snake River Plain volcanic province showing the track of the Yellowstone hot spot. Figure by Ken Pierce and Lisa Morgan.
“The ocean is the closest I can get to an unexplored world, without going into space... I mean, I feel a deep connection to the ocean and its constant rhythms, but when I visit, there's a new discovery or appreciation every time.
“The ocean is the closest I can get to an unexplored world, without going into space... I mean, I feel a deep connection to the ocean and its constant rhythms, but when I visit, there's a new discovery or appreciation every time.
The sun rises at Mount St. Helens (pictured in the distance), with low-level clouds covering Coldwater Lake. The view is from the Coldwater Science and Learning Center, the site of the 2018 GeoGirls field camp program.
The sun rises at Mount St. Helens (pictured in the distance), with low-level clouds covering Coldwater Lake. The view is from the Coldwater Science and Learning Center, the site of the 2018 GeoGirls field camp program.
Coastal Change Storm Hazard Team map created Tuesday, 10/89/18 showing current forecasted beach erosion, overwash and inundation effects of Hurricane Michael's predicted landfall in the Florida Panhandle. Forecast will change with subsequent National Hurricane Center forecasts.
Coastal Change Storm Hazard Team map created Tuesday, 10/89/18 showing current forecasted beach erosion, overwash and inundation effects of Hurricane Michael's predicted landfall in the Florida Panhandle. Forecast will change with subsequent National Hurricane Center forecasts.
This thermal map was constructed by merging about 1300 images from a morning helicopter overflight, and shows the distribution of some of the prominent thermal features in the caldera. The most conspicuous area is a region of high temperatures in the deepest part of the collapse depression, in the area of Halema‘uma‘u.
This thermal map was constructed by merging about 1300 images from a morning helicopter overflight, and shows the distribution of some of the prominent thermal features in the caldera. The most conspicuous area is a region of high temperatures in the deepest part of the collapse depression, in the area of Halema‘uma‘u.
NAGT summer intern, Kelly Sanks, prepares to collect salt marsh sediment cores with her advisor, Dr. Meagan Gonneea (Cape Cod, MA).
NAGT summer intern, Kelly Sanks, prepares to collect salt marsh sediment cores with her advisor, Dr. Meagan Gonneea (Cape Cod, MA).
Only small amounts of sulfur dioxide (SO2) and hydrogen sulfide (H2S) are currently being released from Kīlauea, but they chemically react with each other (oxidation-reduction reaction) to form the bright yellow sulfur deposits visible on the crater walls within Halema‘uma‘u.
Only small amounts of sulfur dioxide (SO2) and hydrogen sulfide (H2S) are currently being released from Kīlauea, but they chemically react with each other (oxidation-reduction reaction) to form the bright yellow sulfur deposits visible on the crater walls within Halema‘uma‘u.
A scientist takes a gravity reading at a station located on the down-dropped block of Kīlauea caldera, which subsided as an intact structure, while a second gravity instrument (foreground) records data. Many of the preexisting gravity stations, which have been measured for years, survived Kīlauea's 2018 summit collapse.
A scientist takes a gravity reading at a station located on the down-dropped block of Kīlauea caldera, which subsided as an intact structure, while a second gravity instrument (foreground) records data. Many of the preexisting gravity stations, which have been measured for years, survived Kīlauea's 2018 summit collapse.
USGS Hawaiian Volcano Observatory staff, September 2018.
USGS Hawaiian Volcano Observatory staff, September 2018.
Screenshot of a point cloud containing more than 50 million points from a photogrammetry project of the Quissett Campus. This point cloud was created from 633 photographs taken from a unmanned aircraft system (UAS) in Woods Hole, Massachusetts in July 2018
Screenshot of a point cloud containing more than 50 million points from a photogrammetry project of the Quissett Campus. This point cloud was created from 633 photographs taken from a unmanned aircraft system (UAS) in Woods Hole, Massachusetts in July 2018
Upper Left: Dann Blackwood operating the SEABOSS winch during a sampling cruise; Lower left: Bill Schwab, Laura Brothers and Emile Bergeron on the deck of a research vessel; Center Left: Tom O'Brien carrying equipment during a research cruise; Center: USGS staff deploying a seismic system from a research vessel; left: Chuck Worley ready to deploy a multibeam e
Upper Left: Dann Blackwood operating the SEABOSS winch during a sampling cruise; Lower left: Bill Schwab, Laura Brothers and Emile Bergeron on the deck of a research vessel; Center Left: Tom O'Brien carrying equipment during a research cruise; Center: USGS staff deploying a seismic system from a research vessel; left: Chuck Worley ready to deploy a multibeam e
This aerial view of the western part of Kīlauea Volcano's caldera was taken on August 6, 2018. The down-dropped block is faulted about 120 m (400 feet) below the caldera floor. Many 19th-century lava flows are exposed in the fault scarps. Halema‘uma‘u (not visible) is to the left of this photo. USGS photo by D.Swanson.
This aerial view of the western part of Kīlauea Volcano's caldera was taken on August 6, 2018. The down-dropped block is faulted about 120 m (400 feet) below the caldera floor. Many 19th-century lava flows are exposed in the fault scarps. Halema‘uma‘u (not visible) is to the left of this photo. USGS photo by D.Swanson.
USGS Research Geologist Dr. Erika Lentz is conducting real-time kinematic GPS surveys on barrier island dunes, part of her research looking at how coastal landscapes respond to sea-level rise.
USGS Research Geologist Dr. Erika Lentz is conducting real-time kinematic GPS surveys on barrier island dunes, part of her research looking at how coastal landscapes respond to sea-level rise.
Following the draining of magma from Pu‘u ‘Ō‘ō on April 30, 2018, the crater was roughly 356 meters (1168 feet) deep. The upper part of the crater was flaring, with the deepest portion a narrower cylindrical shaft.
Following the draining of magma from Pu‘u ‘Ō‘ō on April 30, 2018, the crater was roughly 356 meters (1168 feet) deep. The upper part of the crater was flaring, with the deepest portion a narrower cylindrical shaft.
Explosive eruption columns of ash rising from Halema‘uma‘u at 11:15 a.m. on May 18, 1924 (top) and at 11:05 a.m. on May 15, 2018 (bottom) look similar.
Explosive eruption columns of ash rising from Halema‘uma‘u at 11:15 a.m. on May 18, 1924 (top) and at 11:05 a.m. on May 15, 2018 (bottom) look similar.
The video was taken during an overflight of Pu‘u ‘Ō‘ō crater on Kīlauea's middle East Rift Zone. No major changes were observed, but the crater shape continues to change due to continued rockfalls.
The video was taken during an overflight of Pu‘u ‘Ō‘ō crater on Kīlauea's middle East Rift Zone. No major changes were observed, but the crater shape continues to change due to continued rockfalls.
COAWST model prediction on September 13, 2018 at 17:00:00. Arrows are wind speed and direction and colors are wave heights in meters.
COAWST model prediction on September 13, 2018 at 17:00:00. Arrows are wind speed and direction and colors are wave heights in meters.
The USGS Coastal Change Hazards Storm Team has forecast coast-wide levels of beach erosion, inundation and overwash due to Hurricane Florence's expected path and landgfall.
The USGS Coastal Change Hazards Storm Team has forecast coast-wide levels of beach erosion, inundation and overwash due to Hurricane Florence's expected path and landgfall.
The Coastal Change Hazards Storm Team has forecast changing water levels at specific locations over time.
The Coastal Change Hazards Storm Team has forecast changing water levels at specific locations over time.
A USGS hydrologic scientist installs a storm-tide sensor near the North Carolina coast as Hurricane Florence approaches.
A USGS hydrologic scientist installs a storm-tide sensor near the North Carolina coast as Hurricane Florence approaches.
USGS oceanographer Shawn Harrison stands on the coastal bluff of Barter Island, Alaska at sunset. Shawn and his fellow researchers are studying how the highly erosive bluff changes under the varied conditions experienced by this stretch of coastline.
USGS oceanographer Shawn Harrison stands on the coastal bluff of Barter Island, Alaska at sunset. Shawn and his fellow researchers are studying how the highly erosive bluff changes under the varied conditions experienced by this stretch of coastline.