...Ian Pierce; Alana Williams; Richard D. Koehler; Colin Chupik Abstract Aerial photographs were collected in the days immediately following the 4–5 July 2019 Ridgecrest earthquake sequence (e.g., Barnhart et al. , 2019 ) along the publically accessible sections of the surface ruptures south...

... that may elucidate behavioral response to earthquakes, including assigned intensity, emotional reaction, and whether damage occurred at the location where the earthquake was experienced. The very large number of people who completed DYFI questionnaires following the July 2019 Ridgecrest, California...

...Sarah E. Minson; Jessie K. Saunders; Julian J. Bunn; Elizabeth S. Cochran; Annemarie S. Baltay; Deborah L. Kilb; Mitsuyuki Hoshiba; Yuki Kodera ABSTRACT We evaluate the timeliness and accuracy of ground‐motion‐based earthquake early warning (EEW) during the July 2019 M 6.4 and 7.1 Ridgecrest...

... but do not receive an alert (missed alerts). We use 91,000 “Did You Feel It?” survey responses to the July 2019 M w 6.4 and M w 7.1 Ridgecrest, California, earthquakes to determine which ground‐motion to intensity conversion equation (GMICE) best fits median MMI with distance. We then explore how...

... or the permanent change in stresses following regional events. One such region of prevalent triggering is the Coso Geothermal Field (CGF) in eastern California, which is located roughly 30 km to the north of the 2019 M w 7.1 Ridgecrest epicenter. Previous regional earthquakes have not only seemingly caused...

...Norman H. Sleep; Susan E. Hough ABSTRACT Strong seismic waves from the July 2019 Ridgecrest, California, earthquakes displaced rocks in proximity to the M 7.1 mainshock fault trace at several locations. In this report, we document large boulders that were displaced at the Wagon Wheel Staging Area...

... Satellite‐2 (ALOS‐2) satellite operated by the Japan Aerospace Exploration Agency and Global Navigation Satellite System (GNSS) data from the Network of the Americas for the 4 July 2019 M w 6.4 and 5 July (local; 6 July UTC) M w 7.1 Ridgecrest earthquakes. We integrated geodetic measurements for the 3D...

...Michael Floyd; Gareth Funning; Yuri Fialko; Rachel Terry; Thomas Herring Abstract The M w 6.4 and M w 7.1 Ridgecrest, California, earthquakes of July 2019 occurred within 34 hr of each other on conjugate strike‐slip faults in the Mojave Desert, just north of the central Garlock fault. Here, we...

...Xiaohua Xu; David T. Sandwell; Bridget Smith‐Konter Abstract Interferometric Synthetic Aperture Radar is an important tool for imaging surface deformation from large continental earthquakes. Here, we present maps of coseismic displacement and strain from the 2019 Ridgecrest earthquakes using...

... applications such as warning systems. In the past decade, a revolution in high‐rate, RT Global Navigation Satellite Systems (GNSS) displacement has provided a new source of data to augment traditional measurement devices. The Ridgecrest, California, earthquake sequence in 2019 provided one of the most complete...

...Rufus D. Catchings; Mark R. Goldman; Jamison H. Steidl; Joanne H. Chan; Amir A. Allam; Coyn J. Criley; Zhenning Ma; Daniel S. Langermann; Garet J. Huddleston; Andrian T. McEvilly; Daniel D. Mongovin; Elizabeth M. Berg; Yehuda Ben‐Zion Abstract The 2019 Ridgecrest, California, earthquake sequence...

...‐crustal LFEs and explore the possible generation mechanisms. We analyze 29,646 aftershocks in the 2019 Ridgecrest, California, earthquake sequence, by measuring the frequency index (FI) to identify candidate low‐frequency aftershocks (LFAs), while accounting for the magnitude dependency of the FI. Using...

...Fred F. Pollitz; Charles W. Wicks; Jerry L. Svarc; Eleyne Phillips; Benjamin A. Brooks; Mark H. Murray; Ryan C. Turner ABSTRACT The 2019 Ridgecrest, California, earthquake sequence involved predominantly right‐lateral strike slip on a northwest–southeast‐trending subvertical fault in the 6 July M...

... Station (NAWSCL) adjacent to the civilian town of Ridgecrest (population: 26,000), the earthquake was felt widely across most of southern California. Immediate response efforts were mounted to investigate the rupture and assess damage ( Stewart et al. , 2019 ) and to calculate aftershock probabilities...

... field analysis conducted by the GAGE ACC. At that time, the offsets are determined based a Kalman filter analysis of the entire time series associated with each station. For the M w  7.1 Ridgecrest earthquake rapid offsets were published in an event file on 9 July 2019 (Table  1 ). The final...

... of the July 2019 Ridgecrest earthquake sequence: a moment magnitude ( M ) 6.5 foreshock on a left‐lateral cross fault in the Salt Wells Valley fault zone, an M 5.5 foreshock in the Paxton Ranch fault zone, and the M 7.1 mainshock, also occurring in the Paxton Ranch fault zone. We collected and uniformly...

...Jessica Ann Thompson Jobe; Belle Philibosian; Colin Chupik; Timothy Dawson; Scott E. K. Bennett; Ryan Gold; Christopher DuRoss; Tyler Ladinsky; Katherine Kendrick; Elizabeth Haddon; Ian Pierce; Brian Swanson; Gordon Seitz ABSTRACT The July 2019 Ridgecrest earthquakes in southeastern California were...

...Andreas Plesch; John H. Shaw; Zachary E. Ross; Egill Hauksson ABSTRACT We present new 3D source fault representations for the 2019 M 6.4 and M 7.1 Ridgecrest earthquake sequence. These representations are based on relocated hypocenter catalogs expanded by template matching and focal mechanisms...

...; Brian Olson; Jason Patton; Belle Philibosian; Alexandra J. Pickering; Ian Pierce; Daniel J. Ponti; Gordon Seitz; Eleanor Spangler; Brian Swanson; Kate Thomas; Jerome Treiman; Francesca Valencia; Alana Williams; Robert Zinke ABSTRACT Surface rupture in the 2019 Ridgecrest, California, earthquake sequence...

... sampled datasets, to measure earthquake stress drop in the region surrounding the 2019 Ridgecrest, California, earthquake sequence. With more than 11,000 measurements of earthquake stress drop in the 20‐yr time period from 2000 through 2019, this dataset provides an opportunity to understand how coseismic...