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Images related to natural hazards.
In this photo of Kīlauea Volcano's summit lava lake, the light-colored rock in the vent wall to the left of the spattering lava shows were a rockfall occurred on January 2. The shadow of the gas plume appears as a brown streak perpendicular to the dark-colored lava on the floor of Halema‘uma‘u Crater.
In this photo of Kīlauea Volcano's summit lava lake, the light-colored rock in the vent wall to the left of the spattering lava shows were a rockfall occurred on January 2. The shadow of the gas plume appears as a brown streak perpendicular to the dark-colored lava on the floor of Halema‘uma‘u Crater.
Fragments of molten lava were thrown on the rim of Halema‘uma‘u Crater during the January 2 explosive event. This close-up shows the dust and small rock particles that adhered to the surface of these fragments as they were thrown upward through the ashy plume.
Fragments of molten lava were thrown on the rim of Halema‘uma‘u Crater during the January 2 explosive event. This close-up shows the dust and small rock particles that adhered to the surface of these fragments as they were thrown upward through the ashy plume.
Preview image for video: Around 2:17 p.m., HST, on January 2, a rockfall from the east rim of the Overlook vent within Halema‘uma‘u Crater at the summit of Kīlauea impacted the lava lake, generating a small explosive event captured by HVO webcams. shows the rockfall as seen from HVO and Jaggar Museum.
Preview image for video: Around 2:17 p.m., HST, on January 2, a rockfall from the east rim of the Overlook vent within Halema‘uma‘u Crater at the summit of Kīlauea impacted the lava lake, generating a small explosive event captured by HVO webcams. shows the rockfall as seen from HVO and Jaggar Museum.
On January 4, a rockfall within the Overlook vent at the summit of Kīlauea generated another small explosive event at 3:18 a.m., HST. In this image, captured by a USGS Hawaiian Volcano Observatory webcam, the dusty gas plume can be seen rising from the vent after rocks impacted the lava lake.
On January 4, a rockfall within the Overlook vent at the summit of Kīlauea generated another small explosive event at 3:18 a.m., HST. In this image, captured by a USGS Hawaiian Volcano Observatory webcam, the dusty gas plume can be seen rising from the vent after rocks impacted the lava lake.
Preview image for video: shows the same rockfall as captured by the USGS Hawaiian Volcano Observatory webcam perched on the rim of Halema‘uma‘u Crater. Note the fragments of molten lava flying toward the camera—just one of the hazards that led to the closure of this area.
Preview image for video: shows the same rockfall as captured by the USGS Hawaiian Volcano Observatory webcam perched on the rim of Halema‘uma‘u Crater. Note the fragments of molten lava flying toward the camera—just one of the hazards that led to the closure of this area.
On remote Barter Island, Alaska, Bruce Richmond (right) and Cordell Johnson drill into 500-foot-thick permafrost using a handheld drill with a 2-inch drill bit—a challenging task! It can take 3 hours to drill nearly 20 feet down.
On remote Barter Island, Alaska, Bruce Richmond (right) and Cordell Johnson drill into 500-foot-thick permafrost using a handheld drill with a 2-inch drill bit—a challenging task! It can take 3 hours to drill nearly 20 feet down.
Volcanic eruptions happen in the State of California about as frequently as the largest earthquakes on the San Andreas Fault Zone. At least 10 eruptions have taken place in California in the past 1,000 years—most recently at Lassen Peak in Lassen Volcanic National Park (1914 to 1917) in the northern part of the State—and future volcanic eruptions are inevitable.
Volcanic eruptions happen in the State of California about as frequently as the largest earthquakes on the San Andreas Fault Zone. At least 10 eruptions have taken place in California in the past 1,000 years—most recently at Lassen Peak in Lassen Volcanic National Park (1914 to 1917) in the northern part of the State—and future volcanic eruptions are inevitable.
This USGS vessel acquires single-beam bathymetry in shallow nearshore environments. We acquire repeat bathymetry surveys over multiple years and compute changes in bathymetry, thus allowing us to identify hotspots of erosion and deposition on short timescales.
This USGS vessel acquires single-beam bathymetry in shallow nearshore environments. We acquire repeat bathymetry surveys over multiple years and compute changes in bathymetry, thus allowing us to identify hotspots of erosion and deposition on short timescales.
Tsunami evacuation route sign at an intersection in Nehalem, Oregon.
Tsunami evacuation route sign at an intersection in Nehalem, Oregon.
USGS scientist BJ Reynolds sets up a solar-powered, satellite-uplinked GPS base station in the Fire Island Wilderness Area to support detailed elevation surveys.
USGS scientist BJ Reynolds sets up a solar-powered, satellite-uplinked GPS base station in the Fire Island Wilderness Area to support detailed elevation surveys.
CalVO's Stuart Wilkinson skis out to a remote seismic instrument in the Long Valley volcanic region to perform routine maintenance.
CalVO's Stuart Wilkinson skis out to a remote seismic instrument in the Long Valley volcanic region to perform routine maintenance.
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.
Eruptions between 1064 and 1067 AD produced three lava flows that covered 8 km2 (3 mi2) and a field of scoria and spatter that covers 2300 km2 (890 mi2). Archeological evidence shows that there were communities of people living in the area who were impacted by the eruption.
Eruptions between 1064 and 1067 AD produced three lava flows that covered 8 km2 (3 mi2) and a field of scoria and spatter that covers 2300 km2 (890 mi2). Archeological evidence shows that there were communities of people living in the area who were impacted by the eruption.
A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the Gulf of America Coast
A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the Gulf of America Coast
Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast
Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast
Box-cores provide a relatively undistributed look into the recent past to help better understand the processes contributing to sediment deposition and erosion.
Box-cores provide a relatively undistributed look into the recent past to help better understand the processes contributing to sediment deposition and erosion.
Surface sediments will be analyzed for various physical parameters that will be used as initial conditions in hydrodynamic and sediment transport models.
Surface sediments will be analyzed for various physical parameters that will be used as initial conditions in hydrodynamic and sediment transport models.
Measuring seagrass biomass in Chincoteague Bay, Maryland to constrain numerical models.
Measuring seagrass biomass in Chincoteague Bay, Maryland to constrain numerical models.
USGS scientists collect sediment samples in a gas hydrates area during a cruise on the U.S. Atlantic margin in 2015.
USGS scientists collect sediment samples in a gas hydrates area during a cruise on the U.S. Atlantic margin in 2015.
Flood maps from Our Coast, Our Future showing Stinson Beach today (slide 1); with a 50-centimeter sea-level rise (slide 2); and when an annual storm strikes in addition to 50-centimeter sea-level rise (slide 3). Green patches are low-lying areas prone to flooding.
Flood maps from Our Coast, Our Future showing Stinson Beach today (slide 1); with a 50-centimeter sea-level rise (slide 2); and when an annual storm strikes in addition to 50-centimeter sea-level rise (slide 3). Green patches are low-lying areas prone to flooding.
Near vertical (top, middle) and low angle oblique (bottom) aerial photographs of Oregon Inlet, North Carolina. View looking west along the North Carolina shore. High waves and storm surge from Hurricane Joaquin eroded the beach and inundated the low area in the backshore at Oregon Inlet (A, green box, blue arrows).
Near vertical (top, middle) and low angle oblique (bottom) aerial photographs of Oregon Inlet, North Carolina. View looking west along the North Carolina shore. High waves and storm surge from Hurricane Joaquin eroded the beach and inundated the low area in the backshore at Oregon Inlet (A, green box, blue arrows).