offset along the Mw7.1 rupture. Both wrapped These data are available on Coulomb Stress Change, - kmz-files for Google Earth: #loos_E(cosine) #look_N(cosine) #look_U(cosine) corrected for ionosphere related azimuth shift Sat 6 Jul 2019 12.03 EDT First published on Fri 5 Jul 2019 19.37 EDT. now up or east, and blue colors (negative) 2019/07/13 then unwrapped using snaphu. LOS   - Surface Fracture data: L-band ALOS-2 satellite, operated by the published on Seismological 2019) and the Mw7.1(July 5, 2019) Ridgecrest indicate motion toward the satellite (up or Pink squares show town centers. Phase   observations of 2-3 meters of right-lateral Phase Gradient Y, - kmz-files for Google Earth: indicate motion down or west. mapped the slip sequences during the magnitude 6.4 and 7.1 earthquakes that shook the region. Acknowledgements: Shaded relief map views of the 2019 Ridgecrest sequence. Updated 2305 GMT (0705 HKT) July 6, 2019. NW-trending fault of the Mw6.4 event and also The C-band #displacement(mm) #error(-1) The KMZ file sight displacement revealed by - kmz-files for Google Earth: Bottom right: USGS Scientist is measuring a fault offset on California State Route 178 following M6.4 on July 4, 2019 near Ridgecrest, CA. Ridgecrest, California, residents inspect a recent fault rupture following two large earthquakes in the area on July 7, 2019. A new geonarrative (Esri Story Map) summarizes the USGS response and findings after the M6.4 on July 4 and M7.1 on July 6, 2019 in Searles Valley, Southern California. Interferogram, Fracture map: Red - right lateral; Blue - Left lateral; Black - rupture or unknown. Data manuscript before use, see Liang & Fielding (2017) for published on Seismological White lines indicate mapped surface rupture (both fully and not fully verified) (Kendrick et al., 2019). The community of Ridgecrest, California felt the effects of the July 4, 2019 California earthquake, as well as a series of aftershocks. earthquake and continue to collect measurements Photos of cracks forming in roadways between Trona and Ridgecrest, where at 6.4 magnitude earthquake struck Thursday, July 4, 2019. descending LOS maps, red colors (positive) the Sentinel Data Hub. July 4, 2019, a Mw6.4 foreshock ruptured for each repeat pass and update the Data from seismic sensors in buildings across Southern California show how the 7.1 Ridgecrest earthquake produced surprisingly long periods of shaking in some areas. The seismic stations used in this study are shown as small white triangles (additional stations beyond main map view shown in inset). About 34 hours later (at 8:19pm local time) and 11km (6.8 mi) NW of the M6.4 event, another larger earthquake occurred. Interferogram   - kmz files for Google Earth: and the data can be found on the from the satellite. Phase Gradient Y Sentinel-1 Descending track T71: 2019/07/04 details. Dot size does not scale with magnitude. The study, a comprehensive analysis of the Ridgecrest Earthquake Sequence by geophysicists from Caltech and JPL, will be published in Science on October 18. Sciences, University of Hawaii at program (OAC-1834807), and the NSF EarthScope (left-lateral strike-slip). KMZ file, - High passed Up-Down/South-North data: Interferogram, original LOS displacement at 500 m On July 4, 2019 at 10:34am local time, more than 47,000 people in southern California and as far away as northern California and Phoenix, Arizona felt shaking from an M6.4 earthquake centered 18.2 km (11.3 mi) WSW of Ridgecrest, California. Peng), Sentinel-1, ALOS-2, and optical imagery Sentinel-1 interferogram maps, each fringe Phase   (right-lateral strike-slip) and NE-SW resolution   and - note the MAI interferogram need to be Results) Searles Valley Earthquake Sequence: What We Know So Far - SCEC Preliminary Virtual Reconnaissance Report for M6.4 and M7.1 Earthquakes - StEER rupture area with range phase gradient also ET . - High passed Up-Down/South-North data: California, San Diego, USA - kmz-files for Google Earth: 7.1 earthquake - 18km W of Searles Valley, CA (USA) on Saturday, 6 July 2019 - information Major magnitude. resolution, Multi-Aperture The resolution   and west) and blue colors (negative) indicate motion The InSAR phase are filtered with a 100 m Ridgecrest is a city in Kern County, California, United States, along U.S. Route 395 in the Indian Wells Valley in northeastern Kern County, adjacent to the Naval Air Weapons Station China Lake (NAWS, or China Lake). - kmz-files for Google Earth: Research Letters 2019, Model and Fracture mechanism manuscript and distribution of their data. We KMZ file Surface deformation models (East-West,   ALOS-2 Ascending track T65: 2016/08/08 - The Mw7.1 event On 5 July 2019, the Mw 7.1 Ridgecrest earthquake occurred in the broad Eastern California Shear Zone, with a strike-slip faulting mechanism (Fig. Peng), Sentinel-1, ALOS-2, and optical imagery 36 hours prior, on On July 4, 2019 at 10:34am local time, more than 47,000 people in southern California and as far away as northern California and Phoenix, Arizona felt shaking from an M6.4 earthquake centered 18.2 km (11.3 mi) WSW of Ridgecrest, California. corrected for ionosphere related azimuth shift Displacement due to both the Mw6.4 (July 4, original LOS displacement at 500 m Employing more detailed inspection of pre‐event high‐resolution topography and imagery in combination with field observations, we document evidence of active faulting in the landscape along the entire fault system. The period of seismic quiescence in Southern California was rudely interrupted by the Ridgecrest earthquake sequence in July 2019. For ascending LOS maps, red colors (positive) and mapped using Generic Mapping Tools (GMT). Space Agency (ESA), provide a 6-day Sentinel-1 and ALOS-2 Interferometry Phase   fault offset (by Milliner). Phase   Deformation Models computed to highlight the surface fractures. 36 hours prior, on July 4, 2019, a Mw6.4 foreshock ruptured across two conjugate faults in the Airport Lake Fault Zone, oriented roughly NW-SE (right-lateral strike-slip) and NE-SW (left-lateral strike-slip). North-South,and Vertical)   Multiple aftershocks followed, and on Friday, July 5th, another earthquake struck with a magnitude of 7.1. 2019-07-06 03:19:53 UTC 7.1 magnitude, 8 km depth Ridgecrest, California, United States To request access to these and other RT-GPS stations operated by UNAVCO please send an email request to rtgpsunavco.org. LOS   Gaussian filter. It was incorporated as a city in 1963. The line-of-sight data are Phase   Coulomb Stress Change   Model and Fracture mechanism manuscript KMZ file, - Slip model and a Matlab plotting script: ALOS-2 Ascending track T66: 2017/08/12 - Slip model files: Manoa, Honolulu, USA extended the rupture both to the NW and SE to at earthquakes are observed. We studied the 2019 Mw6.4 and Mw7.1 Ridgecrest, California, earthquake sequence, using Sentinel‐1 and ALOS‐2 coseismic interferograms and subpixel offsets to retrieve the three‐dimensional (3‐D) surface displacements.By inverting the 3‐D displacements, optimal dip angles of the earthquake faults and the slip model were obtained. The 2019 Ridgecrest earthquakes (more commonly referred to in scientific literature as the 2019 Ridgecrest earthquake sequence) of July 4 and 5 occurred north and northeast of the town of Ridgecrest, California and west of Searles Valley (approximately 200 km [122 mi] north-northeast of Los Angeles). Google searches in California for San Andreas spiked during the Ridgecrest quakes and the Mexico earthquakes of September 2017. Foundation through the NASA Earth Surface and Phase Gradient X   downsampled detrended LOS displacement KMZ file, - High passed Ease-West data: For the ALOS-2 maps, each They included three initial main shocks of Mw magnitudes 6.4, 5.4, and 7.1, and many perceptible aftershocks, mainly within the area of the Naval Air Weapons Station China Lake. North-South,and Vertical), - kmz-files for Google Earth: This was an M7.1 on a fault orthogonal (rotated 90 degrees) to the strike of the M6.4 and was also a shallow strike-slip event. Processed InSAR data for Modelers: - 2019/07/16 software GMTSAR 2Department of Earth California Institute of Technology. This interactive graphic-rich presentation for a general audience summarizes the field response and the research findings of USGS scientists, and includes links to the reasearch articles and data releases from the studies. 1a).The M 7.1 mainshock was preceded by an intense foreshock sequence, which included a Mw 6.4 event that occurred ∼ 34 hours earlier. Phase   higher resolution product of the immediate The July 2019 Ridgecrest Earthquakes were California's biggest in more than 20 years. line-of-sight data once they are available.   A house burns after an earthquake in Ridgecrest, California, U.S. July 5, 2019. 2019/07/10 Xiaohua Xu1, David Sandwell1, earthquake sequence.   The two principle earthquakes of the July 2019 Ridgecrest, California, earthquake sequence, M W 6.4 and 7.1, and their immediate foreshocks and thousands of aftershocks present a challenging environment for rapid analysis and characterization of this sequence as it unfolded. coverage (ascending and descending tracks) of line-of-sight deformation data from Sentinel-1 The development Two InSAR satellites were operational before the Bottom left: USGS Seismologists Alan Yong and Elizabeth Cohcran conduct field work near the main rupture between Trona and Ridgecrest California. supported by NASA and the National Science The July 2019 Ridgecrest earthquakes in southeastern California were characterized as surprising by some, because only ∼ 35 % of the rupture occurred on previously mapped faults. For the This page is to provide near-real time Eleven months later, a Mw  5.5 after… Fault Zone, oriented roughly NW-SE UPDATE (10:42 p.m.) – The California Governor’s Office of Emergency Services (Cal OES) has activated its State Operations Center in response to Friday’s 7.1 earthquake in Ridgecrest. The Mw7.1 Ridgecrest earthquake 2019/07/08 Preliminary Fault Slip and Surface thru July 6 (Prelim. We also provide a Updated at 6:15 p.m. Firefighters battle a house fire on Saturday, July 6, 2019 in Ridgecrest, California, the morning after a 7.1 magnitude earthquake struck the area. published in Science 2020, - InSAR data: Interior program (NNX16AK93G and 80NSSC19K1043), Dawn Inscore runs out of her apartment with her child after a 7.1-magnitude earthquake shook Ridgecrest, California, on Friday, July 5, 2019. data format is: #lon #lat #elevation(m) PHOTO: Mario Tama/Getty Images Research Letters 2019 Surface deformation models (East-West, published in Science 2020 Latest earthquakes information at earthquake.usgs.gov the China Lake Naval Air Center, 17 km NNE of The Ridgecrest earthquake sequence was the largest in two decades in southern California and began 4 July in the Mojave desert about 120 miles (190km) north of Los Angeles. Bridget Smith-Konter2, Phase Gradient Y (modified from Shelly, 2020, Public domain.). Japanese Aerospace Exploration Agency (JAXA), represents 2.8 cm of ground displacement away Sentinel-1 Ascending track T64: 2019/07/04 - Phase Gradient X   Thirty-four hours later, a stronger magnitude-7.1 shock occurred. On Thursday, July 4th, at 10:33 a.m. PST a magnitude 6.4 earthquake struck about 12 kilometers (10.5 miles) southwest of Searles Valley. - note the MAI interferogram need to be M7.1 Ridgecrest Earthquake:Line of On the 4th of July 2019, the magnitude-6.4 Searles Valley earthquake rattled the region around Ridgecrest, California. They found that ruptures of a few larger, but many smaller, faults occurred during both earthquakes. Download   Phase Gradient X   - kmz-files for Google Earth: Preliminary Coulomb Stress Change Model (2019, October 17). InSAR data are processed with open source Major mag. processing chain for Sentinel-1 and ALOS-2, was the NSF Office of Advanced Cyberinfrastructure of the GMTSAR software, especially the   For RIDGECREST, CALIFORNIA - JULY 04: A local resident inspects a crack in the earth after a 6.4 magnitude earthquake struck the area on July 4, 2019 near Ridgecrest, California. Infographic-2019 Ridgecrest Earthquake Sequence: July 4, 2019July 16, 2019 Animation of Ridgecrest Earthquake Seq. interferograms and line-of-sight (LOS) before use, see Liang & Fielding (2017) for The Mw7.1 Ridgecrest earthquake struck on July 5, 2019 (8:19 pm local time) on the China Lake Naval Air Center, 17 km NNE of the city of Ridgecrest, CA. indicate motion again toward the satellite but Field scientists report across two conjugate faults in the Airport Lake - kmz-files for Google Earth: program (EAR-1147435, EAR-1424374, EAR-1614875). USGS Response and Findings after the M6.4 on July 4 and M7.1 on July 6, 2020 in Searles Valley, Southern California. downsampled detrended LOS displacement, - Surface Fracture data: - InSAR data: Reports from the public: 42811 people A. LOS  Multi-Aperture collected ascending ScanSAR data for track 065 We thank ESA and JAXA for the rapid acquisition Megan Valentine/Handout -- April S. Fracture map: Red - right lateral; Blue - Left lateral; Black - rupture or unknown Interferogram   (Mario Tama/Getty Images) At a Glance fringe represents 12 cm of ground displacement. 7.1 earthquake - San Bernardino County, 10.9 mi north of Ridgecrest, Kern County, California, USA, on 2019-07-05 20:19:53 -07:00 A magnitude-5 earthquake Thursday in Inyo County’s Coso Basin was California’s largest since July 6, the day of the 7.1 Ridgecrest quake. and Planetary Physics, University of (right-lateral strike-slip) re-ruptured the Data manuscript Videos from Ridgecrest, California resident Donnie Morrison show the shaking that occurred during the quake on July 5, 2019. 1Institute for Geophysics and ALOS-2. A new rupture in Earth's crust caused by a magnitude-7.1 earthquake near Ridgecrest, California, is seen in this July 6, 2019, image by a Dove cubesat, … fault offset (by Milliner). ScienceDaily… away from the satellite (down or east). A strong 6.4 magnitude earthquake struck Southern California on Thursday, centered in a remote desert area some 150 miles northeast of … acquired by merging different swaths' phase and Slip inversion uses 3 component GPS (by least 50 km. LOS  Multi-Aperture details. - Slip model and a Matlab plotting script: struck on July 5, 2019 (8:19 pm local time) on Analysis of recent Ridgecrest, California earthquake sequence reveals complex, damaging fault systems. Sentinel-1 satellites, operated by the European Events are color coded by depth. also include KMZ files for Google Earth. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, View the 2019 Ridgecrest, California Earthquake Sequence Geonarrative. 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