(right-lateral strike-slip) re-ruptured the program (EAR-1147435, EAR-1424374, EAR-1614875). extended the rupture both to the NW and SE to at North-South,and Vertical), - kmz-files for Google Earth: for each repeat pass and update the 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. the NSF Office of Advanced Cyberinfrastructure ET . Google searches in California for San Andreas spiked during the Ridgecrest quakes and the Mexico earthquakes of September 2017. Peng), Sentinel-1, ALOS-2, and optical imagery Phase Gradient Y, - kmz-files for Google Earth: struck on July 5, 2019 (8:19 pm local time) on The 2019) and the Mw7.1(July 5, 2019) Ridgecrest LOS  Multi-Aperture Major mag. 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 Research Letters 2019 For USGS Response and Findings after the M6.4 on July 4 and M7.1 on July 6, 2020 in Searles Valley, Southern California. represents 2.8 cm of ground displacement away Photos of cracks forming in roadways between Trona and Ridgecrest, where at 6.4 magnitude earthquake struck Thursday, July 4, 2019. and ALOS-2. North-South,and Vertical)   Processed InSAR data for Modelers: earthquake and continue to collect measurements 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. It was incorporated as a city in 1963. Depth is referenced to a surface elevation of 0.7 km above sea level. Download, - kmz files for Google Earth: 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). Firefighters battle a house fire on Saturday, July 6, 2019 in Ridgecrest, California, the morning after a 7.1 magnitude earthquake struck the area. 2019/07/08 Slip model files: Phase   program (OAC-1834807), and the NSF EarthScope earthquake sequence. The study, a comprehensive analysis of the Ridgecrest Earthquake Sequence by geophysicists from Caltech and JPL, will be published in Science on October 18. M7.1 Ridgecrest Earthquake:Line of KMZ file Preliminary Coulomb Stress Change Model Phase Gradient Y supported by NASA and the National Science Acknowledgements: rupture area with range phase gradient also   Research Letters 2019, Model and Fracture mechanism manuscript Phase Gradient Y 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. from the satellite. Phase Gradient X   - kmz-files for Google Earth: #loos_E(cosine) #look_N(cosine) #look_U(cosine) LOS  Multi-Aperture KMZ file, - High passed Up-Down/South-North data: published on Seismological corrected for ionosphere related azimuth shift The period of seismic quiescence in Southern California was rudely interrupted by the Ridgecrest earthquake sequence in July 2019. original LOS displacement at 500 m KMZ file Phase Gradient X   thru July 6 (Prelim. Japanese Aerospace Exploration Agency (JAXA), indicate motion toward the satellite (up or details. The Mw7.1 Ridgecrest earthquake the (modified from Shelly, 2020, Public domain.). KMZ file, - Slip model and a Matlab plotting script: Interferogram, original LOS displacement at 500 m NW-trending fault of the Mw6.4 event and also 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. On the 4th of July 2019, the magnitude-6.4 Searles Valley earthquake rattled the region around Ridgecrest, California. Slip inversion uses 3 component GPS (by Sentinel-1 interferogram maps, each fringe Data manuscript before use, see Liang & Fielding (2017) for For the ALOS-2 maps, each Manoa, Honolulu, USA A new study of the Ridgecrest Earthquake Sequence, the largest earthquake sequence in Southern California, that began on July 4, 2019, provided new evidence that massive earthquakes can happen in a more complex fashion than commonly expected. We will continue to provide images Sat 6 Jul 2019 12.03 EDT First published on Fri 5 Jul 2019 19.37 EDT. A house burns after an earthquake in Ridgecrest, California, U.S. July 5, 2019. (right-lateral strike-slip) and NE-SW Infographic-2019 Ridgecrest Earthquake Sequence: July 4, 2019July 16, 2019 Animation of Ridgecrest Earthquake Seq. LOS   displacement maps are provided below. Dawn Inscore runs out of her apartment with her child after a 7.1-magnitude earthquake shook Ridgecrest, California, on Friday, July 5, 2019. indicate motion again toward the satellite but published in Science 2020, - InSAR data: the Sentinel Data Hub. Bottom left: USGS Seismologists Alan Yong and Elizabeth Cohcran conduct field work near the main rupture between Trona and Ridgecrest California. Sentinel-1 satellites, operated by the European Sciences, University of Hawaii at Megan Valentine/Handout -- April S. Bottom right: USGS Scientist is measuring a fault offset on California State Route 178 following M6.4 on July 4, 2019 near Ridgecrest, CA. For ascending LOS maps, red colors (positive) About 34 hours later (at 8:19pm local time) and 11km (6.8 mi) NW of the M6.4 event, another larger earthquake occurred. - kmz-files for Google Earth: resolution, Multi-Aperture Preliminary Fault Slip and Surface For the 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. Phase   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. Videos from Ridgecrest, California resident Donnie Morrison show the shaking that occurred during the quake on July 5, 2019. mapped the slip sequences during the magnitude 6.4 and 7.1 earthquakes that shook the region. (Mario Tama/Getty Images) At a Glance The Ridgecrest sequence calls for rethinking … Bridget Smith-Konter2, LOS   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. Reports from the public: 42811 people A. A strong 6.4 magnitude earthquake struck Southern California on Thursday, centered in a remote desert area some 150 miles northeast of … - Slip model and a Matlab plotting script: Coulomb Stress Change   California, San Diego, USA 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. Phase   Analysis of recent Ridgecrest, California earthquake sequence reveals complex, damaging fault systems. data format is: #lon #lat #elevation(m) These data are available on The line-of-sight data are   California Institute of Technology. the city of Ridgecrest, CA. fault offset (by Milliner). downsampled detrended LOS displacement, - Surface Fracture data: Results) Searles Valley Earthquake Sequence: What We Know So Far - SCEC Preliminary Virtual Reconnaissance Report for M6.4 and M7.1 Earthquakes - StEER Two InSAR satellites were operational before the also include KMZ files for Google Earth. Shaded relief map views of the 2019 Ridgecrest sequence. 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. 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 July 2019 Ridgecrest earthquakes in southeastern California were characterized as surprising by some, because only ∼ 35 % of the rupture occurred on previously mapped faults. Interferogram   Surface deformation models (East-West, 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). Download   Sentinel-1 and ALOS-2 Interferometry To request access to these and other RT-GPS stations operated by UNAVCO please send an email request to rtgpsunavco.org. - InSAR data: published in Science 2020 Both wrapped Foundation through the NASA Earth Surface and 7.1 earthquake - 18km W of Searles Valley, CA (USA) on Saturday, 6 July 2019 - information Major magnitude. We The development Phase   the China Lake Naval Air Center, 17 km NNE of Ross et al. The Mw7.1 event The July 2019 Ridgecrest Earthquakes were California's biggest in more than 20 years. They found that ruptures of a few larger, but many smaller, faults occurred during both earthquakes. Updated 2305 GMT (0705 HKT) July 6, 2019. fringe represents 12 cm of ground displacement. 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). Pink squares show town centers. July 4, 2019, a Mw6.4 foreshock ruptured KMZ file 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. observations of 2-3 meters of right-lateral - note the MAI interferogram need to be The C-band line-of-sight data once they are available. west) and blue colors (negative) indicate motion interferograms and line-of-sight (LOS) Space Agency (ESA), provide a 6-day Xiaohua Xu1, David Sandwell1,   #displacement(mm) #error(-1) - Surface Fracture data: 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 Gradient X   Phase   Displacement due to both the Mw6.4 (July 4, Events are color coded by depth. 2019-07-06 03:19:53 UTC 7.1 magnitude, 8 km depth Ridgecrest, California, United States   published on Seismological of the GMTSAR software, especially the This page is to provide near-real time Fracture map: Red - right lateral; Blue - Left lateral; Black - rupture or unknown acquired by merging different swaths' phase and - kmz-files for Google Earth: sight displacement revealed by 2019/07/10 away from the satellite (down or east). Sentinel-1 Ascending track T64: 2019/07/04 - descending LOS maps, red colors (positive) Surface deformation models (East-West, Updated at 6:15 p.m. 2019/07/13 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. 2Department of Earth (left-lateral strike-slip). Thirty-four hours later, a stronger magnitude-7.1 shock occurred. - kmz-files for Google Earth: The seismic stations used in this study are shown as small white triangles (additional stations beyond main map view shown in inset).

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