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USGS Earthquake Science Center Mobile Laser Scanning truck operated by Ben Brooks and Todd Ericksen scanning the surface rupture near the zone of maximum surface displacement of the M7.1 Searles Valley earthquake.
USGS Earthquake Science Center Mobile Laser Scanning truck operated by Ben Brooks and Todd Ericksen scanning the surface rupture near the zone of maximum surface displacement of the M7.1 Searles Valley earthquake.
Oblique photograph showing surface faulting from the M7.1 Searles Valley earthquake. The dirt track (center) is right-laterally offset approximately 2.5 m (~8 ft).
Oblique photograph showing surface faulting from the M7.1 Searles Valley earthquake. The dirt track (center) is right-laterally offset approximately 2.5 m (~8 ft).
This video describes the high-water marks needed along with cross-section locations for critical depth indirect measurements. Critical depth computations are those performed when flow goes through a critical flow regime at a drop, such as at a waterfall.
This video describes the high-water marks needed along with cross-section locations for critical depth indirect measurements. Critical depth computations are those performed when flow goes through a critical flow regime at a drop, such as at a waterfall.
USGS Geologists Beth Haddon and Josie Nevitt measure fault displacement along the principal rupture.
USGS Geologists Beth Haddon and Josie Nevitt measure fault displacement along the principal rupture.
USGS geologists Josie Nevitt and Beth Haddon make measurements of fault rupture.
USGS geologists Josie Nevitt and Beth Haddon make measurements of fault rupture.
USGS Geophysicists Elizabeth Cochran and Nick VanDerElst install a seismometer on the base.
USGS Geophysicists Elizabeth Cochran and Nick VanDerElst install a seismometer on the base.
USGS geodesist Todd Ericksen sets up GPS surveying equipment on July 5th.
USGS geodesist Todd Ericksen sets up GPS surveying equipment on July 5th.
USGS geophysicist Ken Hudnut demonstrating Drop Cover and Hold Technique during the foreshock sequence to the M7.1 Searles Valley earthquake.
USGS geophysicist Ken Hudnut demonstrating Drop Cover and Hold Technique during the foreshock sequence to the M7.1 Searles Valley earthquake.
Aerial view shot from Blackhawk helicopter overflight on July 6 of the zone of high surface displacement.
Aerial view shot from Blackhawk helicopter overflight on July 6 of the zone of high surface displacement.
USGS geologist Josie Nevitt and geodesist Todd Ericksen collect a sample from the fault zone of the main rupture.
USGS geologist Josie Nevitt and geodesist Todd Ericksen collect a sample from the fault zone of the main rupture.
Truck scanning road offset on the base with USGS geologist Josie Nevitt walking along side.
Truck scanning road offset on the base with USGS geologist Josie Nevitt walking along side.
Vertical fault rupture on road with truck.
Vertical fault rupture on road with truck.
Highway 178 SW of Trona. Taken earlier in the morning July 6, 2019 after the M7.1 earthquake which struck eastern California, southwest of Searles Valley, near Ridgecrest, CA.
Highway 178 SW of Trona. Taken earlier in the morning July 6, 2019 after the M7.1 earthquake which struck eastern California, southwest of Searles Valley, near Ridgecrest, CA.
Fault scarp at offset access road site. Center line has been offset up and to the right as one looks across the fault towards the east.
Fault scarp at offset access road site. Center line has been offset up and to the right as one looks across the fault towards the east.
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.
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.
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.
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.
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.
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.
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.
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.