Patricia Persaud
University of Arizona
Associate Professor
Expertise: Seismology, Tectonics, Stress Field
About Me
Publications
Patricia Persaud is a seismologist who specializes in leading large field campaigns with the goal of building new datasets for imaging Earth structure. She uses dense seismic arrays to develop high-resolution Earth models from earthquakes and explosive sources (Imperial and Coachella Valleys), and ambient noise (San Fernando, San Gabriel, Chino and San Bernardino basins). Her group mainly conducts research to identify the processes and subsurface features that impact earthquake hazard assessment and groundwater movement in densely populated areas such as Southern California. She also uses oil industry data to address issues of public concern by providing constraints on stress in the crust that will help to improve the accuracy of earthquake rupture scenarios and ground motion estimates.
She was a SCEC Mentor in 2020 and currently serves on the GSA Council. Her group has contributed two Earth models to SCEC’s UCVM software framework.
She was a SCEC Mentor in 2020 and currently serves on the GSA Council. Her group has contributed two Earth models to SCEC’s UCVM software framework.
SCEC Participation
Current Roles
SCEC Science Steering Committee, Member (2024 - Present)Past Roles
SCEC Mentor (2020)Kain, J. O., & Persaud, P. (2021). Insight into the Stress Field of the Southern Los Angeles Basin, California Determined from Borehole Breakout and Drilling Induced Fracture Analysis . Insight into the Stress Field of the Southern Los Angeles Basin, California Determined from Borehole Breakout and Drilling Induced Fracture Analysis , (in preparation). SCEC Contribution 10955
Sadler, B., Persaud, P., & Pulliam, J. (2024, 09). Improving Velocity Constraints in Sedimentary Basins by Jointly Modeling Receiver Functions and Autocorrelograms. Poster Presentation at 2024 SCEC Annual Meeting. SCEC Contribution 13723
Omojola, J. B., & Persaud, P. (2024, 09). Expanding the Seismicity Catalog in San Fernando Valley with Dense Array Recordings of Micro-Earthquakes. Poster Presentation at 2024 SCEC Annual Meeting. SCEC Contribution 13721
Nardoni, C., & Persaud, P. (2024). Evidence for faulting and fluid-driven earthquake processes from seismic attenuation variations beneath metropolitan Los Angeles. Scientific Reports, 14(17595 ). doi: https://doi.org/10.1038/s41598-024-67872-3. SCEC Contribution 13447
Ghose, R., Persaud, P., & Clayton, R. W. (2023). Basin Structure for Earthquake Ground Motion Estimates in Urban Los Angeles Mapped with Nodal Receiver Functions. Geosciences, 13(11). doi: 10.3390/geosciences13110320. SCEC Contribution 13342
Ajala, R., Persaud, P., & Kolawole, F. (2023, 09). 3D full waveform inversion of the Salton Seismic Imaging Project active source dataset. Poster Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 12978
Persaud, P., Ajala, R., Nardoni, C., & Juarez, A. (2023, 09). Scaling-up Community Earth Models: A Hybrid Approach. Oral Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 12865
Nardoni, C., Persaud, P., Omojola, J., & Clayton, R. (2022, 09). Imaging Seismic Attenuation across the Northern Los Angeles Basins with Dense Arrays. Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12078
Omojola, J. B., Persaud, P., Nardoni, C., & Catchings, R. D. (2022, 09). Utilizing Automated Picks from the 2020 Mw 6.5 Monte Cristo Range Earthquake Sequence to Image the Aftershock Region. Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12075
Persaud, P., & Ajala, R. (2022, 09). Ground-Motion Predictions for Salton Trough Using Cross-Pollinated Earth Models. Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 11955
Ajala, R., Persaud, P., & Juarez, A. (2022). Earth model space exploration in Southern California: Influence of topography, geotechnical layer, and attenuation on wavefield accuracy. Frontiers in Earth Science,. doi: doi: 10.3389/feart.2022.964806. SCEC Contribution 11904
Ajala, R., & Persaud, P. (2022). Ground-Motion Evaluation of Hybrid Seismic Velocity Models. The Seismic Record, 2(3), 186-196. doi: 10.1785/0320220022. SCEC Contribution 10950
Wang, X., Zhan, Z., Zhong, M., Persaud, P., & Clayton, R. W. (2021). Urban Basin Structure Imaging Based on Dense Arrays and Bayesian Array‐Based Coherent Receiver Functions. Journal of Geophysical Research: Solid Earth, 126(9). doi: 10.1029/2021JB022279. SCEC Contribution 11876
Ajala, R., Persaud, P., & Juarez, A. (2021, 08). Beyond 1 Hz: Double-difference active source adjoint tomography of Salton Trough. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11547
Ghose, R., Persaud, P., Li, Y., Villa, V., & Clayton, R. W. (2021, 08). High-Frequency Receiver Function Profiles Reveal Sedimentary Basin Structure Beneath the Northern Los Angeles Area. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11464
Villa, V., Li, Y., Ghose, R., Clayton, R. W., & Persaud, P. (2021, 08). 3D Basement-Depth Map for the San Gabriel, Chino, and San Bernardino Basins. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11459
Persaud, P., & Stock, J. M. (2021, 08). Borehole-Derived Stress Constraints for High-Risk Fault Systems in Southern California. Oral Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11157
Omojola, J. B., Persaud, P., Catchings, R. D., & Goldman, M. R. (2021, 08). Searching for Hidden Microearthquakes using Data-based, Physics-based, and Hybrid Models: Implications for Salt Dome Monitoring . Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11152
Ajala, R., & Persaud, P. (2021). Effect of Merging Multiscale Models on Seismic Wavefield Predictions Near the Southern San Andreas Fault. Journal of Geophysical Research: Solid Earth, 126(10). doi: 10.1029/2021JB021915. SCEC Contribution 10948
Persaud, P., Pritchard, E. H., & Stock, J. M. (2020). Scales of Stress Heterogeneity Near Active Faults in the Santa Barbara Channel, Southern California. Geochemistry, Geophysics, Geosystems, 21(1). doi: 10.1029/2019GC008744. SCEC Contribution 8267
Ghose, R., Persaud, P., & Clayton, R. W. (2020, 08). Basin Structure Revealed in Teleseismic Receiver Functions from a Dense Nodal Seismic Array in the Northern Los Angeles Basins. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10769
Kain, J. O., & Persaud, P. (2020, 08). Detailed study of stress-related borehole features and the stress regime near the Wilmington Blind-Thrust Fault in the Los Angeles area. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10682
Ajala, R., Persaud, P., & Juarez, A. (2020, 08). Methodology for producing hybrid Earth models with improved waveform predictions near the southern San Andreas fault and updates to SCEC UCVM API. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10660
Aguilar, B. J., Persaud, P., & Clayton, R. W. (2020, 08). Identifying the Moho and an intracrustal interface along a Nodal Seismic Line in the eastern San Bernardino Basin. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10612
Li, Y., Clayton, R. W., & Persaud, P. (2020, 08). Scattering in the Ambient Noise Correlations in the San Gabriel Basin. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10599
Rivera, K. M., Persaud, P., Clayton, R. W., Ghose, R., & Ajala, R. (2020, 08). Crustal Structure Along a Nodal Seismic Line in the San Bernardino Basin From Teleseismic Receiver Functions. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10559
Villa, V., Clayton, R. W., & Persaud, P. (2020, 08). Using Seismic and Gravity Measurements to Map the 3D Structure of the San Gabriel and San Bernardino Basins. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10413
Clayton, R. W., Persaud, P., Denolle, M. A., & Polet, J. (2019). Exposing Los Angeles’s Shaky Geologic Underbelly. Eos, 100. doi: 10.1029/2019EO135099. SCEC Contribution 9944
Ajala, R., Persaud, P., Juarez, A., & Ayeni, G. (2019, 08). Evaluating seismic velocity models in the Salton Trough, Southern California using spectral-element wave simulation of validation events. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9577
Persaud, P., Clayton, R. W., Denolle, M. A., & Polet, J. (2019, 08). Field Volunteers for the Los Angeles BASIN Seismic Experiment – Phase IV. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9559
Kain, J. O., Persaud, P., & Stock, J. M. (2019, 08). Horizontal Principal Stress Orientations Near Long Beach, California from Borehole Breakouts. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9465
Ajala, R., Persaud, P., Stock, J. M., Fuis, G. S., Hole, J. A., Goldman, M., & Scheirer, D. (2019). Three‐Dimensional Basin and Fault Structure From a Detailed Seismic Velocity Model of Coachella Valley, Southern California. Journal of Geophysical Research: Solid Earth,. doi: 10.1029/2018JB016260. SCEC Contribution 8269
Ajala, R., Persaud, P., Stock, J. M., Fuis, G. S., Hole, J. A., Goldman, M. R., & Scheirer, D. S. (2018, 08). 3-D upper crustal velocity structure of the Coachella Valley, Southern California: results from the salton seismic imaging project. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8575
Kain, J. O., Persaud, P., & Pritchard, E. H. (2018, 08). Borehole Breakout Determined Stress Regime in the Southern Los Angeles Basin, California. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8494
Persaud, P., Liu, G., & Clayton, R. W. (2018, 08). Urban Nodal Array Maps Structure of the Northern Los Angeles Basins with Teleseismic Receiver Functions. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8374
Pritchard, E. H., Persaud, P., & Stock, J. M. (2018, 08). New Constraints on Stress Heterogeneity along High Risk Fault Systems in the Santa Barbara Channel, California from Borehole Breakouts. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8344
Clayton, R. W., Denolle, M. A., Olsen, K. B., Persaud, P., & Polet, J. (2018, 08). Basin Amplification Seismic INvestigation: tracking the propagation of waves from the San Andreas Fault to Los Angeles. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8333
Liu, G., Persaud, P., & Clayton, R. W. (2018). Structure of the Northern Los Angeles Basins Revealed in Teleseismic Receiver Functions from Short-term Nodal Seismic Arrays. Seismological Research Letters,. doi: https://doi.org/10.1785/0220180071. SCEC Contribution 8266
Jänecke, S. U., Kenney, M., Persaud, P., Markowski, D. K., & Evans, J. P. (2018). Durmid ladder structure and its implications for the nucleation sites of the next M >7.5 earthquake on the San Andreas fault or Brawley seismic zone in southern California. Lithosphere, 10(5), 602-631. doi: 10.1130/L629.1. SCEC Contribution 7224
Pritchard, E. H., Persaud, P., & Stock, J. M. (2017, 08). Using Borehole Breakouts in Deviated Offshore Wells to Constrain Stress Regimes Beneath The Santa Barbara Channel, Offshore Southern California. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7752
Ajala, R., Persaud, P., Stock, J. M., Fuis, G. S., Hole, J. A., Goldman, M. R., & Scheirer, D. S. (2017, 08). 3-D Velocity Model of the Coachella Valley Determined Using P-Wave First Arrival Times from the Salton Seismic Imaging Project and Local Earthquakes. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7646
Persaud, P., Tan, E., Contreras, J., & Lavier, L. (2017). A bottom-driven mechanism for distributed faulting in the Gulf of California rift. Tectonophysics, 719-720, 51-65. doi: 10.1016/j.tecto.2016.11.024. SCEC Contribution 7640
Clayton, R. W., Lin, F., Denolle, M. A., Persaud, P., & Polet, J. (2017, 08). Imaging the San Gabriel and San Bernardino Basins with short-term Nodal deployments. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7441
Persaud, P., Ma, Y., Stock, J. M., Hole, J. A., Fuis, G. S., & Han, L. (2016). Fault zone characteristics and basin complexity in the southern Salton Trough, California. Geology, 44(9), 747-750. doi: 10.1130/G38033.1. SCEC Contribution 7092
Hernandez, A., Persaud, P., Bauer, K., Stock, J. M., Fuis, G. S., Hole, J. A., & Goldman, M. R. (2015, 09). Profile of Shallow Crustal Structure across the San Andreas Fault Zone, Coachella Valley based on Controlled-Source Data from the Salton Seismic Imaging Project (SSIP). Poster Presentation at SCEC Annual Meeting. SCEC Contribution 7636
Persaud, P., Stock, J. M., & Smith, D. E. (2015). Evidence of sub kilometer-scale variability in in-situ stress directions near active faults: an example from the Newport-Inglewood Fault, southern California, Abstract T23C-2972. Poster Presentation at American Geophysical Union Fall Meeting. SCEC Contribution 6218
Persaud, P., Stock, J. M., & Smith, D. E. (2015). Sub Kilometer-scale Variability in In-situ Stress Directions near the Newport-Inglewood Fault, Southern California. Poster Presentation at 2015 SCEC Annual Meeting. SCEC Contribution 6066
Last updated Sep 19, 2024.
