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.
Back at the USGS Cascades Volcano Observatory office, these data are merged with airborne LiDAR data to calculate lake volume.
Back at the USGS Cascades Volcano Observatory office, these data are merged with airborne LiDAR data to calculate lake volume.
A view of the lava lake within the Halema‘uma‘u Overlook vent on an unusually clear day (May 16, 2012) with the Jaggar Museum and the HVO building in the distance.
A view of the lava lake within the Halema‘uma‘u Overlook vent on an unusually clear day (May 16, 2012) with the Jaggar Museum and the HVO building in the distance.
Macroalgae, seagrass, and litter in West Falmouth Harbor, MA
Macroalgae, seagrass, and litter in West Falmouth Harbor, MA
A narrow channelized flow cascades down the steep lower portion of the pali in Royal Gardens subdivision. This flow was close to the former location of Paradise St.
A narrow channelized flow cascades down the steep lower portion of the pali in Royal Gardens subdivision. This flow was close to the former location of Paradise St.
Burned trees along the trail into Hummingbird Saddle, Gila National Forest, New Mexico, where USGS scientists installed a rain gage.
Burned trees along the trail into Hummingbird Saddle, Gila National Forest, New Mexico, where USGS scientists installed a rain gage.
USGS scientist finishes the installation of a rain gage at Hummingbird Saddle, Gila National Forest, New Mexico.
USGS scientist finishes the installation of a rain gage at Hummingbird Saddle, Gila National Forest, New Mexico.
Aerial view of the Gila Wilderness Area on the approach to Mogollon Baldy Lookout, where USGS scientists installed a rain gage to provide advance flood warning, Gila National Forest, New Mexico.
Aerial view of the Gila Wilderness Area on the approach to Mogollon Baldy Lookout, where USGS scientists installed a rain gage to provide advance flood warning, Gila National Forest, New Mexico.
Lava flows remain active on the pali and coastal plain, but the flow front has made no significant progress towards the ocean over the past week. This image is a composite of a thermal image and a normal photograph, with active breakouts shown by yellow and white areas, and recent, but inactive, flows shown in red and purple.
Lava flows remain active on the pali and coastal plain, but the flow front has made no significant progress towards the ocean over the past week. This image is a composite of a thermal image and a normal photograph, with active breakouts shown by yellow and white areas, and recent, but inactive, flows shown in red and purple.
View from near the top of Mount Tarawera looking northeast along part of the string of explosion craters that split the volcano on June 10, 1886. Mount Edgecumbe stands in the distance.
View from near the top of Mount Tarawera looking northeast along part of the string of explosion craters that split the volcano on June 10, 1886. Mount Edgecumbe stands in the distance.
View of Pu‘u ‘Ō‘ō crater, looking southwest. In the foreground, an active, spattering lava pond is contained within a collapse pit near the east rim of the crater. Two additional vents, both emitting fume, can be seen behind the fume from the lava pond.
View of Pu‘u ‘Ō‘ō crater, looking southwest. In the foreground, an active, spattering lava pond is contained within a collapse pit near the east rim of the crater. Two additional vents, both emitting fume, can be seen behind the fume from the lava pond.
Lava flows remain active on the pali and coastal plain, and continue to slowly migrate towards the ocean. This thermal-visual composite shows the distribution of active flows, which are extensive and consist of several lobes. The active flow front today was 1.1 km (0.7 miles) from the water.
Lava flows remain active on the pali and coastal plain, and continue to slowly migrate towards the ocean. This thermal-visual composite shows the distribution of active flows, which are extensive and consist of several lobes. The active flow front today was 1.1 km (0.7 miles) from the water.
A close-up of the lava pond in the eastern portion of Pu‘u ‘Ō‘ō crater. The lava pond is about 30 meters (100 ft) in diameter. The dark lava flows at the bottom of the photo are crater overflows that swept down the east flank of Pu‘u ‘Ō‘ō in September 2011.
A close-up of the lava pond in the eastern portion of Pu‘u ‘Ō‘ō crater. The lava pond is about 30 meters (100 ft) in diameter. The dark lava flows at the bottom of the photo are crater overflows that swept down the east flank of Pu‘u ‘Ō‘ō in September 2011.
This false-color satellite image shows the ongoing lava flow activity on the east rift zone of Kīlauea volcano along with nearby cities and towns on the east side of the Big Island. The image was acquired at 10:28 am on June 12 by the Advanced Land Imager sensor aboard the NASA Earth Observing 1 satellite.
This false-color satellite image shows the ongoing lava flow activity on the east rift zone of Kīlauea volcano along with nearby cities and towns on the east side of the Big Island. The image was acquired at 10:28 am on June 12 by the Advanced Land Imager sensor aboard the NASA Earth Observing 1 satellite.
Mark Anderson, Director of the USGS South Dakota Water Science Center, dedicated a flood marker at the Post Office in Keystone, SD, in June 2012 to commenorate the 40th anniversary of the devastating 1972 flood in the Black Hills of South Dakota.
Mark Anderson, Director of the USGS South Dakota Water Science Center, dedicated a flood marker at the Post Office in Keystone, SD, in June 2012 to commenorate the 40th anniversary of the devastating 1972 flood in the Black Hills of South Dakota.
Mark Anderson, Director of the USGS South Dakota Water Science Center, dedicated a flood marker at Cleghorn Springs Fish Hatchery in Rapid City, SD, in June 2012 to commemorate the 40th anniversary of the devastating 1972 flood in the Black Hills of South Dakota.
Mark Anderson, Director of the USGS South Dakota Water Science Center, dedicated a flood marker at Cleghorn Springs Fish Hatchery in Rapid City, SD, in June 2012 to commemorate the 40th anniversary of the devastating 1972 flood in the Black Hills of South Dakota.
This composite image combines a thermal image with a normal photograph, and shows the recent breakouts on the pali and coastal plain in Royal Gardens subdivision. The two large vegetated areas in this view are some of the only remaining portions of Royal Gardens not covered by lava.
This composite image combines a thermal image with a normal photograph, and shows the recent breakouts on the pali and coastal plain in Royal Gardens subdivision. The two large vegetated areas in this view are some of the only remaining portions of Royal Gardens not covered by lava.
Map showing the extent of lava flows erupted during Kīlauea's ongoing east rift zone eruption and labeled with the years in which they were active.
Map showing the extent of lava flows erupted during Kīlauea's ongoing east rift zone eruption and labeled with the years in which they were active.
A major eruption of Mount Hood would pose a great hazard to the regional economy.
A major eruption of Mount Hood would pose a great hazard to the regional economy.
A circular lava pond has recently been active near the eastern rim of Pu‘u ‘Ō‘ō crater. Today, the lava pond had low-level but continuous spattering from its eastern margin, and a mostly crusted lava surface.
A circular lava pond has recently been active near the eastern rim of Pu‘u ‘Ō‘ō crater. Today, the lava pond had low-level but continuous spattering from its eastern margin, and a mostly crusted lava surface.
The lava flows on the coastal plain are still slowly advancing towards the water. On today's overflight, the active breakouts were about 750 m (0.5 miles) from the ocean. These flows have once again entered the National Park.
The lava flows on the coastal plain are still slowly advancing towards the water. On today's overflight, the active breakouts were about 750 m (0.5 miles) from the ocean. These flows have once again entered the National Park.
Partially submerged eelgrass bed at low tide in Fay Bainbridge Park on Bainbridge Island, Washington. Eelgrass is an underwater plant that is a common sight on Puget Sound beaches when the tide is out. Healthy eelgrass indicates that water clarity is high.
Partially submerged eelgrass bed at low tide in Fay Bainbridge Park on Bainbridge Island, Washington. Eelgrass is an underwater plant that is a common sight on Puget Sound beaches when the tide is out. Healthy eelgrass indicates that water clarity is high.