Measuring a fault offset on California State Route 178. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.
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Measuring Earthquake Damage on California Hwy. 178
Measuring a fault offset on California State Route 178. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.
Earthquake Damage on California Hwy. 178
A fault offset on California State Route 178 with a pen for scale. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.
A fault offset on California State Route 178 with a pen for scale. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.
Earthquake Damage on California Hwy. 178
California State Route 178, showing cracks due to fault offsets following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.
California State Route 178, showing cracks due to fault offsets following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.
Surface Rupture from Fault
On July 4, 2019, a Magnitude 6.4 earthquake struck Searles Valley, CA. This photo provides likely evidence that the fault that hosted the earthquake ruptured to the ground surface.
On July 4, 2019, a Magnitude 6.4 earthquake struck Searles Valley, CA. This photo provides likely evidence that the fault that hosted the earthquake ruptured to the ground surface.
Surface Rupture from Fault
On July 4, 2019, a Magnitude 6.4 earthquake struck Searles Valley, CA. This photo provides likely evidence that the fault that hosted the earthquake ruptured to the ground surface.
On July 4, 2019, a Magnitude 6.4 earthquake struck Searles Valley, CA. This photo provides likely evidence that the fault that hosted the earthquake ruptured to the ground surface.
Comparison of recent photos of water in Halema‘uma‘u
These four images show the change in the area and level of water at the bottom of Halema‘uma‘u spanning August 9 to 13. Rocks in the center of the pond and near the shoreline help show the change in the waterline.
These four images show the change in the area and level of water at the bottom of Halema‘uma‘u spanning August 9 to 13. Rocks in the center of the pond and near the shoreline help show the change in the waterline.
Ridgecrest Earthquake - Documenting Ruptures
Belle Philibosian working with Gordon Seitz (CGS) and Stephan Bock (NAWS) to document surface ruptures of the M7.1 Ridgecrest earthquake, July 2019.
Belle Philibosian working with Gordon Seitz (CGS) and Stephan Bock (NAWS) to document surface ruptures of the M7.1 Ridgecrest earthquake, July 2019.
Moletrack crossing China Lake dry lake bed
Moletrack crossing China Lake dry lake bed after Ridgecrest earthquake in July of 2019.
Moletrack crossing China Lake dry lake bed after Ridgecrest earthquake in July of 2019.
Palu Earthquake Damage to House from Liquefaction
House destroyed by Palu earthquake-induced liquefaction. Note standing water which indicates a nearly surface-level water table that contributed to the widespread liquefaction.
House destroyed by Palu earthquake-induced liquefaction. Note standing water which indicates a nearly surface-level water table that contributed to the widespread liquefaction.
Data locations for Ice Island Arctic Ocean Heat Flow Studies
Data locations for Ice Island Arctic Ocean Heat Flow Studies
Data locations for Ice Island Arctic Ocean Heat Flow Studies
Different portions of the ponds have different colors, presumably reflecting dif
Different portions of the ponds have different colors, presumably reflecting different amounts or varying chemistry of dissolved particles in the water.
Different portions of the ponds have different colors, presumably reflecting different amounts or varying chemistry of dissolved particles in the water.
Red Sea Urchins
Two red sea urchins (Mesocentrotus franciscanus) sit on the deck of the R/V Falkor. These sea urchins were collected during the #HuntingBubbles research cruise led by the USGS and Schmidt Ocean Institute, which focused on exploring and understanding methane seeps and the communities that depend on them along the Cascadia Margin.
By
Ecosystems, Natural Hazards, Coastal and Marine Hazards and Resources Program, Environments Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Communications and Publishing
Two red sea urchins (Mesocentrotus franciscanus) sit on the deck of the R/V Falkor. These sea urchins were collected during the #HuntingBubbles research cruise led by the USGS and Schmidt Ocean Institute, which focused on exploring and understanding methane seeps and the communities that depend on them along the Cascadia Margin.
By
Ecosystems, Natural Hazards, Coastal and Marine Hazards and Resources Program, Environments Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science Center, Communications and Publishing
HVO geologist examine road cuts on Hwy 132
On August 7, HVO geologists measured temperatures and documented the rock layers exposed as sections of Highway 132 buried by lava during the 2018 lower East Rift Zone eruption are "ripped" (shown here) to reopen the road. USGS photo by C. Parcheta, 08-07-2019.
On August 7, HVO geologists measured temperatures and documented the rock layers exposed as sections of Highway 132 buried by lava during the 2018 lower East Rift Zone eruption are "ripped" (shown here) to reopen the road. USGS photo by C. Parcheta, 08-07-2019.
Wildfire history in the mud
Marine geochemist Renee Takesue collects a sample of exposed mud in a marsh near Sonoma Creek, California. She will look here and in nearby San Pablo Bay for chemicals from the 2017 Nuns Wildfire that can harm wildlife. The stormy winter of 2018 may have transported these contaminants from the Sonoma Creek watershed into San Pablo Bay National Wildlife Refuge.
Marine geochemist Renee Takesue collects a sample of exposed mud in a marsh near Sonoma Creek, California. She will look here and in nearby San Pablo Bay for chemicals from the 2017 Nuns Wildfire that can harm wildlife. The stormy winter of 2018 may have transported these contaminants from the Sonoma Creek watershed into San Pablo Bay National Wildlife Refuge.
Surveying GPS Ground Control Point locations
A USGS scientist surveys GPS Ground Control Point locations on North Topsail Beach and within the Camp Lejeune Marine Corps Base, North Carolina. These data are used to validate previously surveyed aerial imagery and aid in Structure from Motion (SFM) processing. Specifically, this scientist was collecting data to look at coastal change due to Hurricane Florence.
A USGS scientist surveys GPS Ground Control Point locations on North Topsail Beach and within the Camp Lejeune Marine Corps Base, North Carolina. These data are used to validate previously surveyed aerial imagery and aid in Structure from Motion (SFM) processing. Specifically, this scientist was collecting data to look at coastal change due to Hurricane Florence.
The photo above has been cropped here to better show agitation on the pond surfa
The photo above has been cropped here to better show agitation on the pond surface. The agitation could be due to escaping gases from below rising through the water, or from the water boiling, or, perhaps, a combination of both.
The photo above has been cropped here to better show agitation on the pond surface. The agitation could be due to escaping gases from below rising through the water, or from the water boiling, or, perhaps, a combination of both.
Photos before and after Hurricane Sandy opened a breach on Fire Island
USGS researchers have been monitoring changes in a breach in the island that occurred during Hurricane Sandy (modified from Hapke et al., 2017).
USGS researchers have been monitoring changes in a breach in the island that occurred during Hurricane Sandy (modified from Hapke et al., 2017).
CMHRP investigations help protect natural and cultural resources
The CMHRP has been conducting scientific investigations at Fire Island in order to protect natural and cultural resources.
The CMHRP has been conducting scientific investigations at Fire Island in order to protect natural and cultural resources.
USGS Cascades Volcano Observatory staff, June 2019
USGS Cascades Volcano Observatory staff, June 2019
USGS Cascades Volcano Observatory staff, June 2019
Water ponds in Halema‘uma‘u now joined
During field observations on August 8, HVO scientists noted that all three ponds are now joined, indicating that the water at the bottom of Halema‘uma‘u continues to slowly rise. Rangefinder measurements also suggested continued pond deepening.
During field observations on August 8, HVO scientists noted that all three ponds are now joined, indicating that the water at the bottom of Halema‘uma‘u continues to slowly rise. Rangefinder measurements also suggested continued pond deepening.
Synchrotron X-Ray microtomography 3D image (a) and cathodoluminescence slice (b)
Synchrotron X-Ray microtomography 3D image (a) and cathodoluminescence slice (b) from the same reentrant-bearing quartz crystal from the Lava Creek Tuff. The reentrants are in darker blue in (a) and the black cavities in (b). Note their relationship to quartz growth bands. Red domains are small magnetite crystals.
Synchrotron X-Ray microtomography 3D image (a) and cathodoluminescence slice (b) from the same reentrant-bearing quartz crystal from the Lava Creek Tuff. The reentrants are in darker blue in (a) and the black cavities in (b). Note their relationship to quartz growth bands. Red domains are small magnetite crystals.