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Railroad tracks offset right-laterally by about 3 feet; southeast of Hwy. 178.

Right-lateral slip across fractures on a hillside, with shattered ground along the surface fault rupture near Ridgecrest, CA.

USGS Seismologists Alan Yong and Elizabeth Cohcran conduct field work near the main rupture between Trona and Ridgecrest California.

The "groover" is river slang for the toilet. At every camp, the groover site is choosen to accommodate a scenic view as well as to provide its users with a modicum of privacy. At our Ledge Camp, it was easy to find groover users an incredible view, but the privacy factor was in short supply. If you're on a river trip, you can't be groover shy!

A group photo of the 13 members of the Cataract Canyon segment of the SCREE taken at the Dirty Devil (Lake Powell) take-out. From left to right: Ben Kraushaar, Pat Kikut, Matt Cuzzocreo, Tess Harden, Rick Moscati, Erika Osborne, Jessica Flock, Jan McCool, Dan McCool, John Weisheit, Kate Hudson, Tom Minckley, and Cody Perry.

Staudinger and masters student Keenan Yakola (UMass Amherst, 2019) measuring an adult Atlantic puffin on Seal Island National Wildlife Refuge. 

The black silhouettes of the SCREE flotilla drifts in the shadow of rock walls within Narrow Canyon of the Colorado River.

Schematic model showing a cross section of Old Faithful's plumbing system as determined from seismic studies. The red circles (t0-t3) show the location of the tremor source over time, and how the tremor source migrates upward prior to an Old Faithful eruption. Times between red circles are based on a 93-minute eruption interval.

A 59 lb., 64 in. female lake sturgeon is released into the Seneca River after telemetry tagging. Pictured GLSC (Cortland, New York) personnel are Grant Scholten, Marc Chalupnicki, and Caleb Konrad.

A fault offset on California State Route 178 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.

California State Route 178, showing cracks due to fault offsets following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.

The SCREE boats are tied off at a rock ledge camp along the Colorado River at Mile 178.

Measurement of fault offset being done by USGS scientist Ken Hudnut, using the offset of a painted road stripe. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.

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.

Janis Hernandez (California Geological Survey) measures 18 centimeters of offset across one strand of the fault rupture zone. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.

Measurement of fault offset being done by USGS scientist Ken Hudnut, using the offset of a painted road stripe on California State Route 178. This measurement was conducted following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.

Paper Powell is posed in the bow of a boat relaxing upon calm waters and in the morning shade within the canyon.

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.

A brook floater filter feeding as it is anchored into the sediment of a stream bottom. Habitat loss is a long-recognized problem for many endangered species, and the brook floater is no exception. In-stream alterations that change flow and alter sediment loads can affect downstream locations where freshwater mussels live.