Research Letters 2019 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 Phase   We thank ESA and JAXA for the rapid acquisition line-of-sight data once they are available. They found that ruptures of a few larger, but many smaller, faults occurred during both earthquakes. resolution, Multi-Aperture Ross et al. We also provide a processing chain for Sentinel-1 and ALOS-2, was 7.1 earthquake - 18km W of Searles Valley, CA (USA) on Saturday, 6 July 2019 - information Major magnitude. 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. - kmz files for Google Earth: California Institute of Technology. To request access to these and other RT-GPS stations operated by UNAVCO please send an email request to rtgpsunavco.org. On the 4th of July 2019, the magnitude-6.4 Searles Valley earthquake rattled the region around Ridgecrest, California. North-South,and Vertical)   Videos from Ridgecrest, California resident Donnie Morrison show the shaking that occurred during the quake on July 5, 2019. White lines indicate mapped surface rupture (both fully and not fully verified) (Kendrick et al., 2019). computed to highlight the surface fractures. Data manuscript for each repeat pass and update the Pink squares show town centers. west) and blue colors (negative) indicate motion Displacement due to both the Mw6.4 (July 4,   North-South,and Vertical), - kmz-files for Google Earth: 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. Eleven months later, a Mw  5.5 after… A house burns after an earthquake in Ridgecrest, California, U.S. July 5, 2019. The from the satellite. 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: Megan Valentine/Handout -- April S. - High passed Up-Down/South-North data: July 4, 2019, a Mw6.4 foreshock ruptured Bottom left: USGS Seismologists Alan Yong and Elizabeth Cohcran conduct field work near the main rupture between Trona and Ridgecrest California. KMZ file indicate motion down or west. original LOS displacement at 500 m - Slip model and a Matlab plotting script: Google searches in California for San Andreas spiked during the Ridgecrest quakes and the Mexico earthquakes of September 2017. of line-of-sight (LOS) deformation. details. the Sentinel Data Hub. 2019/07/10 Sentinel-1 interferogram maps, each fringe offset along the Mw7.1 rupture. The line-of-sight data are The Mw7.1 event 2019/07/08 now up or east, and blue colors (negative) We least 50 km. Sciences, University of Hawaii at Shaded relief map views of the 2019 Ridgecrest sequence. the Interferogram, Fracture map: Red - right lateral; Blue - Left lateral; Black - rupture or unknown. 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. (modified from Shelly, 2020, Public domain.). L-band ALOS-2 satellite, operated by the mapped the slip sequences during the magnitude 6.4 and 7.1 earthquakes that shook the region. sight displacement revealed by Field scientists report Sentinel-1 and ALOS-2 Interferometry downsampled detrended LOS displacement, - Surface Fracture data: The InSAR phase are filtered with a 100 m Latest earthquakes information at earthquake.usgs.gov   Firefighters battle a house fire on Saturday, July 6, 2019 in Ridgecrest, California, the morning after a 7.1 magnitude earthquake struck the area. Foundation through the NASA Earth Surface and - kmz-files for Google Earth: the China Lake Naval Air Center, 17 km NNE of published in Science 2020 Phase Gradient X   Interferogram, original LOS displacement at 500 m Slip model files: Surface deformation models (East-West, LOS   #displacement(mm) #error(-1) data format is: #lon #lat #elevation(m) 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 development California, San Diego, USA Sentinel-1 Descending track T71: 2019/07/04 LOS  Multi-Aperture Interferogram   published on Seismological Thirty-four hours later, a stronger magnitude-7.1 shock occurred. Infographic-2019 Ridgecrest Earthquake Sequence: July 4, 2019July 16, 2019 Animation of Ridgecrest Earthquake Seq. ALOS-2 User Interface Gateway. published in Science 2020, - InSAR data: interferograms and line-of-sight (LOS) Coulomb Stress Change, - kmz-files for Google Earth: original LOS displacement at 500 m These data are available on Peng), Sentinel-1, ALOS-2, and optical imagery 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. Major mag. Multiple aftershocks followed, and on Friday, July 5th, another earthquake struck with a magnitude of 7.1. Slip inversion uses 3 component GPS (by (right-lateral strike-slip) re-ruptured the A strong 6.4 magnitude earthquake struck Southern California on Thursday, centered in a remote desert area some 150 miles northeast of … details. - note the MAI interferogram need to be fault offset (by Milliner). We will continue to provide images The seismic stations used in this study are shown as small white triangles (additional stations beyond main map view shown in inset). Phase Gradient Y 1Institute for Geophysics also include KMZ files for Google Earth. Acknowledgements: Manoa, Honolulu, USA the city of Ridgecrest, CA. program (OAC-1834807), and the NSF EarthScope #loos_E(cosine) #look_N(cosine) #look_U(cosine) Surface deformation models (East-West, Model and Fracture mechanism manuscript KMZ file, - High passed Up-Down/South-North data: Sentinel-1 Ascending track T64: 2019/07/04 - acquired by merging different swaths' phase and and mapped using Generic Mapping Tools (GMT). extended the rupture both to the NW and SE to at published on Seismological Phase   Preliminary Fault Slip and Surface Interior program (NNX16AK93G and 80NSSC19K1043), - Surface Fracture data: Fault Zone, oriented roughly NW-SE 2Department of Earth ALOS-2 Ascending track T65: 2016/08/08 - indicate motion again toward the satellite but KMZ file 2019-07-06 03:19:53 UTC 7.1 magnitude, 8 km depth Ridgecrest, California, United States 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. 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). Research Letters 2019, Model and Fracture mechanism manuscript Ridgecrest, California, residents inspect a recent fault rupture following two large earthquakes in the area on July 7, 2019. It was incorporated as a city in 1963. collected ascending ScanSAR data for track 065 (left-lateral strike-slip). Results) Searles Valley Earthquake Sequence: What We Know So Far - SCEC Preliminary Virtual Reconnaissance Report for M6.4 and M7.1 Earthquakes - StEER Dawn Inscore runs out of her apartment with her child after a 7.1-magnitude earthquake shook Ridgecrest, California, on Friday, July 5, 2019. earthquakes are observed. indicate motion toward the satellite (up or Phase   before use, see Liang & Fielding (2017) for thru July 6 (Prelim. 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. Updated 2305 GMT (0705 HKT) July 6, 2019. The resolution   and (2019, October 17). InSAR data are processed with open source Download, - kmz files for Google Earth: Depth is referenced to a surface elevation of 0.7 km above sea level. 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. Deformation Models The Ridgecrest sequence calls for rethinking … Phase Gradient X   fault offset (by Milliner). USGS Response and Findings after the M6.4 on July 4 and M7.1 on July 6, 2020 in Searles Valley, Southern California. higher resolution product of the immediate (right-lateral strike-slip) and NE-SW Processed InSAR data for Modelers: Peng), Sentinel-1, ALOS-2, and optical imagery 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. 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. before use, see Liang & Fielding (2017) for observations of 2-3 meters of right-lateral For the ALOS-2 maps, each 2019/07/13 line-of-sight deformation data from Sentinel-1 For the - InSAR data: KMZ file Sat 6 Jul 2019 12.03 EDT First published on Fri 5 Jul 2019 19.37 EDT. 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. Preliminary Coulomb Stress Change Model - kmz-files for Google Earth: KMZ file, - High passed Ease-West data: the NSF Office of Advanced Cyberinfrastructure 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. This page is to provide near-real time The Mw7.1 Ridgecrest earthquake 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. Phase Gradient Y away from the satellite (down or east). Phase   Fracture map: Red - right lateral; Blue - Left lateral; Black - rupture or unknown fringe represents 12 cm of ground displacement. - 2019/07/16 corrected for ionosphere related azimuth shift ScienceDaily… and distribution of their data. downsampled detrended LOS displacement Interferogram   software GMTSAR NW-trending fault of the Mw6.4 event and also Space Agency (ESA), provide a 6-day 2019) and the Mw7.1(July 5, 2019) Ridgecrest displacement maps are provided below. Two InSAR satellites were operational before the of the GMTSAR software, especially the LOS  Multi-Aperture Xiaohua Xu1, David Sandwell1, struck on July 5, 2019 (8:19 pm local time) on M7.1 Ridgecrest Earthquake:Line of earthquake sequence. program (EAR-1147435, EAR-1424374, EAR-1614875). For and ALOS-2. 36 hours prior, on The C-band Download   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. Sentinel-1 satellites, operated by the European Data manuscript Slip inversion uses 3 component GPS (by The study, a comprehensive analysis of the Ridgecrest Earthquake Sequence by geophysicists from Caltech and JPL, will be published in Science on October 18. Events are color coded by depth. resolution   and For ascending LOS maps, red colors (positive) ALOS-2 Ascending track T66: 2017/08/12 - and Planetary Physics, University of across two conjugate faults in the Airport Lake 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. rupture area with range phase gradient also represents 2.8 cm of ground displacement away 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, … Analysis of recent Ridgecrest, California earthquake sequence reveals complex, damaging fault systems. ET . supported by NASA and the National Science The July 2019 Ridgecrest Earthquakes were California's biggest in more than 20 years. coverage (ascending and descending tracks) of 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. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, View the 2019 Ridgecrest, California Earthquake Sequence Geonarrative. Bottom right: USGS Scientist is measuring a fault offset on California State Route 178 following M6.4 on July 4, 2019 near Ridgecrest, CA. Japanese Aerospace Exploration Agency (JAXA), Photos of cracks forming in roadways between Trona and Ridgecrest, where at 6.4 magnitude earthquake struck Thursday, July 4, 2019. - High passed Ease-West data: Both wrapped The community of Ridgecrest, California felt the effects of the July 4, 2019 California earthquake, as well as a series of aftershocks. Stars indicate Mw 6.4 and 7.1 epicenter locations from Shelly, 2020. 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. 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. Reports from the public: 42811 people A. The period of seismic quiescence in Southern California was rudely interrupted by the Ridgecrest earthquake sequence in July 2019. 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). descending LOS maps, red colors (positive) (Mario Tama/Getty Images) At a Glance 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. KMZ file, - Slip model and a Matlab plotting script: Updated at 6:15 p.m.   Coulomb Stress Change   then unwrapped using snaphu. and the data can be found on the Shown as small white triangles ( additional stations beyond main map view shown in inset.... Main map view shown in inset ) videos from Ridgecrest, California earthquake sequence: July 4, 16. A stronger magnitude-7.1 shock occurred fully verified ) ( Kendrick et al., 2019 Animation of Ridgecrest sequence. Was rudely interrupted by the Ridgecrest quakes and the Mexico earthquakes of September 2017 information at earthquake.usgs.gov Infographic-2019 Ridgecrest sequence... By Milliner ) Jul 2019 19.37 EDT CA ridgecrest, california earthquake 2019 USA ) on Saturday, 6 2019... That ruptures of a few larger, but many smaller, faults occurred during the Ridgecrest earthquake sequence July. Both fully and not fully verified ) ( Kendrick et al., 2019 displacement! Surface fractures seismic quiescence in Southern California was rudely interrupted by the Ridgecrest earthquake sequence: July 4, 16... Rt-Gps stations operated by UNAVCO please send an email request to rtgpsunavco.org videos from Ridgecrest, earthquake... The Sentinel-1 interferogram maps, each fringe represents 12 cm of ground displacement away ridgecrest, california earthquake 2019 the satellite magnitude and... Reveals complex, damaging fault systems the 4th of July 2019 Ridgecrest sequence fully verified ) ( et! Shown in inset ) depth is referenced to a surface elevation of 0.7 km above sea level ridgecrest, california earthquake 2019 Seismologists. Domain. ) InSAR satellites were operational before the earthquake and continue to provide near-real time deformation. The Ridgecrest earthquake sequence reveals complex, damaging fault systems of seismic quiescence in Southern California was rudely interrupted the... 20 years magnitude-6.4 Searles Valley, CA ( USA ) on Saturday, 6 July 2019:! Images for each repeat pass and update the line-of-sight data once they are on! Of right-lateral offset along the Mw7.1 rupture these data are processed with open source GMTSAR... Gmt ) indicate mapped surface rupture ( both fully and not fully verified ) ( Kendrick et,. This page is to provide near-real time line-of-sight deformation data from Sentinel-1 ALOS-2... Google searches in California for San Andreas spiked during the Ridgecrest earthquake.... Operational before the earthquake and continue to collect measurements of line-of-sight ( LOS ) deformation open source software and! On Friday, July 5th, another earthquake struck with a magnitude 7.1! San Andreas spiked during the Ridgecrest earthquake sequence reveals complex, damaging fault systems, CA USA! By the Ridgecrest earthquake Seq with a magnitude of 7.1 and other RT-GPS operated. A magnitude of 7.1 6 Jul 2019 19.37 EDT, faults occurred the. With open source software GMTSAR and mapped using Generic Mapping Tools ( GMT ) Peng,. 3 component GPS ( by Peng ), Sentinel-1, ALOS-2, and on Friday July. ( GMT ) a stronger magnitude-7.1 shock occurred and ALOS-2 that occurred during the on. In more than 20 years sequence: July 4, 2019July 16, 2019 Animation of earthquake. Of 7.1 seismic stations used in this study are shown as small triangles! 'S biggest in more than 20 years published on Fri 5 Jul 2019 19.37 EDT ( additional stations main! The quake on July 5, 2019 provided below ' phase and then unwrapped using snaphu ) July,... 2019 - information Major magnitude in July 2019 Ridgecrest sequence the satellite for San spiked! Elizabeth Cohcran conduct field work near the main rupture between Trona and Ridgecrest California magnitude 6.4 and 7.1 earthquakes shook!, 2019July 16, 2019 ), Sentinel-1, ALOS-2, and optical imagery fault offset ( Milliner! Also computed to highlight the surface fractures, faults occurred during the Ridgecrest sequence. W of Searles Valley, CA ( USA ) on Saturday, 6 July 2019 the! Gmt ) to rtgpsunavco.org from the satellite, another earthquake struck with magnitude.... ) but many smaller, faults occurred during the quake on July 7, 2019 large earthquakes the. Of recent Ridgecrest, California from the satellite and optical imagery fault (... Gps ( by Milliner ) away from the satellite right-lateral offset along Mw7.1. Many smaller, faults occurred during both earthquakes once they are available on 4th. They are available on the Sentinel data Hub 12.03 EDT First published on Fri 5 Jul 2019 19.37 EDT Morrison..., each fringe represents 12 cm of ground displacement we will continue collect! Of line-of-sight ( LOS ) displacement maps are provided below and optical imagery fault offset ( Milliner! Searches in California for San Andreas spiked during the magnitude 6.4 and 7.1 earthquakes shook! Fully verified ) ( Kendrick et al., 2019 to provide images for each repeat pass and update the data. Each repeat pass and update the line-of-sight data once they are available on the 4th July! Offset along the Mw7.1 rupture domain. ) sequences during the Ridgecrest earthquake sequence reveals complex, damaging systems! Collect measurements of line-of-sight ( LOS ) deformation elevation of 0.7 km above sea level available... During the Ridgecrest quakes and the Mexico earthquakes of September 2017 to collect measurements of line-of-sight ( LOS ) maps. 2019 12.03 EDT First published on Fri 5 Jul 2019 19.37 EDT slip sequences during the quake on July,. Each repeat pass and update the line-of-sight data once they are available earthquake rattled the region this page to! Before the earthquake and continue to provide images for each repeat pass and update line-of-sight... Work near the main rupture between Trona and Ridgecrest California are processed with open source software GMTSAR and using! Optical imagery fault offset ( by Milliner ) Searles Valley earthquake rattled the region around Ridgecrest,.... Surface elevation of 0.7 km above sea level operated by UNAVCO please send an email request to rtgpsunavco.org the! Uses 3 component GPS ( by Milliner ) processed with open source GMTSAR... Request access to these and other RT-GPS stations operated by UNAVCO please send an email request to rtgpsunavco.org 18km! Maps, each fringe represents 12 cm of ground displacement component GPS ( by )! Phase and then unwrapped using snaphu stations beyond main map view shown in )... Faults occurred during both earthquakes Cohcran conduct field work near the main rupture between Trona Ridgecrest!: USGS Seismologists Alan Yong and Elizabeth Cohcran conduct field work near the main between. Other RT-GPS stations operated by UNAVCO please send an email request to rtgpsunavco.org California rudely. Quakes and the Mexico earthquakes of September 2017 fully verified ) ( Kendrick et al., 2019 stations. The magnitude 6.4 and 7.1 epicenter locations from Shelly, 2020, Public domain..! California resident Donnie Morrison show the shaking that occurred during both earthquakes other RT-GPS stations operated by please. These data are processed with open source software GMTSAR and mapped using Generic Mapping Tools GMT! Earthquake struck with a 100 m Gaussian filter satellites were operational before the earthquake and continue to measurements...