Multimedia Gallery

USGS geologist Josie Nevitt and geodesist Todd Ericksen collect a sample from the fault zone of the main rupture.

Aerial view shot from Blackhawk helicopter overflight on July 6 of the zone of high surface displacement.

USGS geophysicist Ken Hudnut demonstrating Drop Cover and Hold Technique during the foreshock sequence to the M7.1 Searles Valley earthquake.

USGS geodesist Todd Ericksen sets up GPS surveying equipment on July 5th.

USGS Geophysicists Elizabeth Cochran and Nick VanDerElst install a seismometer on the base.

USGS geologists Josie Nevitt and Beth Haddon make measurements of fault rupture.

USGS Geologists Beth Haddon and Josie Nevitt measure fault displacement along the principal rupture.

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

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

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

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.

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.

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

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

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. The west side has shifted permanently towards the NW

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.

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.

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

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. Taken from an article by Wu et al., 2019, in

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.

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.

California State Route 178, showing cracks due to fault offsets 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.

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.

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.

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.

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.

A fault offset on California State Route 178 following the Magnitude 6.4 earthquake that struck Searles Valley on July 4, 2019.

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. Further, human encroachment from development, run-

2019 July Public Lecture Flyer

Taking the Pulse of our Planet: A 10-year status report from the USA National Phenology Network

By Jake Weltzin, Executive Director of the USA National Phenology Network

• Plants and animals in your backyard are sensitive indicators of climate variation and change

 Close-up of a wetland, showing multiple sources of DOM

Mt. Diablo as seen from Twitchell Island

Photomicrographs from a Ross’s Goose (Chen rossii) found dead in Kansas, US.  (A) Multifocally, there are hemorrhages (arrowheads) admixed with bacteria (arrows) in the adipose tissue along the coronary groove of the heart.  H&E stain.  (B) Necrotic hepatocytes (*) and bacteria (arrows) are present in the liver.  H&E stain. 

Photographs from a Ross’s Goose (Chen rossii) found dead in Kansas, US.  (A) Petechial hemorrhages along the coronary groove of the epicardium (arrowheads) and military pinpoint tan foci on the capsular surface of the liver (arrows).  (B) Abundant creamy stringy yellow mucoid material (*) fills the lumen of the intestine.

Image depicting transportation layer (left image) and structures / orthoimage layers (right image) from a selected area of a 2019 US Topo map of Dallas, TX.

Selected area from a 3/7/19 US Topo map depicting the transportation features (roads, railroads) in the selection.

The cover image for the Summer 2019 DOI Newswave issue.