Images

Fault scarp close to the epicenter. In this location the fault has a main strand where much of the slip occurred, as well as distributed fractures.

California State Route 178 SW of Trona, following the M7.1 earthquake. Road is now closed for repairs. 

Scientists from USGS & CGS and Navy escort, and a UCLA engineer from the GEER team, inspect ~12 +/- 3 foot high fault scarp with from 3 to 5 feet of right-lateral motion near the expected maximum slip locality along the primary tectonic rupture associated with the M 7.1 event.

Team discussion among CGS and USGS earthquake scientists at the location of the primary surface fault rupture where is has disrupted and offset an access road at the NAWS China Lake. The fault runs NW to SE across the road, which runs from west to east. The east side of the road is uplifted relative to the west side.

USGS scientist pointing to the fault scarp that shows the fault moved horizontally, as well as laterally.

CGS and USGS geologists and geophysicists with National Guard and Navy personnel plan next phase of helicopter-supported field investigations on Sat., July 6, 2019 at China Lake NAWS.

USGS scientists and partners review objectives and group assignments  at fault scarp site. The team will deploy seismic instruments to better observe aftershock activity from close in, and to document surface faulting.

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.

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.