Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!
Greg Hirth
Department of Geological Sciences
Brown University
Brown University
Professor
Expertise: Rheology
About Me
Publications
No bio available.
SCEC Participation
SCEC Science Planning Committee, Group Leader (2013 - 2016)Lee, J., Tsai, V. C., Hirth, G., Trugman, D. T., & Chatterjee, A. (2023, 09). Does Fault Network Complexity Explain Stress Drop Variability?. Poster Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 13271
DiMonte, A. A., Ault, A. K., Hirth, G., & Meyers, C. D. (2023, 09). On-fault damage along the southern San Andreas fault: material characterization from natural and experimental clay-rich faults. Poster Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 13233
Ault, A. K., Akciz, S. O., Newell, D. L., Balkaya, M., DiMonte, A. A., Hirth, G., & Zabcı, C. (2023, 09). The 2023 Kahramanmaraş, Turkey, earthquake sequence surface ruptures modified multi-earthquake cycle fault damage and spring hydrology. Poster Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 13144
Hirth, G. (2023, 09). Spatial- and temporal-scaling of laboratory friction data to geologic conditions. Oral Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 12915
Bailey, L. R., Ault, A. K., Hemming, S., DiMonte, A. A., & Hirth, G. (2023, 09). What can clay minerals tell us about fault mechanics and deformation during the earthquake cycle? Insights from the Hidden Spring fault. Poster Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 12818
Tsai, V. C., Hirth, G., Trugman, D., & Chu, S. (2022, 09). An Elastic Impact Model of High-Frequency Earthquake Radiation: Predictions and Observational Constraints. Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12497
Ault, A. K., DiMonte, A. A., Jensen, J. L., Hirth, G., Meyers, C. D., & Bradbury, K. K. (2022, 09). Shallow, transient slow slip in the southern San Andreas fault system: insights from natural and experimental hematite and hematite-clay slip surfaces. Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12289
Chu, S., Baltay, A. S., Tsai, V. C., Abercrombie, R. E., Hirth, G., & Trugman, D. (2022, 09). How is fault complexity linked to high-frequency radiation from Southern California earthquakes? . Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12251
Chu, S., Tsai, V. C., Trugman, D. T., & Hirth, G. (2021, 08). Fault interactions enhance high-frequency earthquake radiation. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11597
DiMonte, A. A., Ault, A. K., Hirth, G., & Meyers, C. D. (2021, 08). Characterizing shallow slow slip with natural and experimental hematite fault surfaces . Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11520
Badt, N. Z., Tullis, T. E., Hirth, G., & Huber, C. (2021, 08). The effects of temperature and pressure on thermal pressurization in localized fault zones. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11505
Montesi, L. G., Hirth, G., & Oskin, M. E. (2021, 08). Predicted Ductile Rheology of Textured and Non-Textured Rocks in Southern California. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11193
Hearn, E. H., Montesi, L. G., Hirth, G., Oskin, M. E., Behr, W. M., & Thatcher, W. R. (2021, 08). The SCEC Community Rheology Model: A modular resource for investigating the effective viscosity structure of southern California. Oral Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11113
Hearn, E. H., Oskin, M. E., Hirth, G., Montesi, L. G., Thatcher, W. R., Behr, W. M., & Pauk, E. (2020, 08). The SCEC Community Rheology Model (CRM) . Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10606
DiMonte, A. A., Ault, A. K., Bradbury, K. K., & Hirth, G. (2020, 08). Evidence for slow slip in Mecca Hills, CA, from microstructural and (U-Th)/He analysis of heterogeneous hematite coatings on shallow fault surfaces. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10564
Montesi, L. G., Hirth, G., Behn, M., Shinevar, W., & Oskin, M. E. (2020, 08). Shear zone rheology: Importance or fabric in the context of the CRM. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10554
Thatcher, W. R., Hearn, E. H., Oskin, M. E., Montesi, L. G., Hirth, G., Behr, W. M., Plesch, A., & Shaw, J. H. (2019, 08). Preliminary SCEC Community Rheology Model. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9833
Hirth, G. (2019, 08). What is a Fault Zone - inferences from stress state. Oral Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9747
Montesi, L. G., Izquierdo, K., Allison, K. L., Holt, W. E., Bahadori, A., Hirth, G., Shinevar, W., & Oskin, M. E. (2019, 08). Rheology of Southern California from Mineral to Regional Scale. Oral Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9735
Badt, N. Z., Tullis, T. E., & Hirth, G. (2019, 08). Thermal pressurization in experimental faults. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9567
Ault, A. K., Calzolari, G., Hirth, G., & McDermott, R. (2019, 08). Detecting asperity flash heating on hematite faults from deformation experiments and (U-Th)/He thermochronometry. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9409
Badt, N. Z., Tullis, T. E., & Hirth, G. (2018, 08). Thermal pressurization evolution with total slip. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8757
Hearn, E. H., Oskin, M. E., Thatcher, W. R., Hirth, G., Behr, W. M., & Legg, M. R. (2018, 08). Progress toward a Community Rheology Model of Southern California. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8696
Kanaya, T., & Hirth, G. (2018, 08). Mechanics of Fault-Tip Deformation in Brittle and Ductile Faults: Laboratory Test of Off-Fault Yield Models & Fracture Energy Budget. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8563
Calzolari, G. V., Ault, A. K., & Hirth, G. (2018, 08). Preliminary data on detecting asperity flash heating on hematite faults with laboratory experiments and hematite (U-Th)/He thermochronometry. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8533
Shinevar, W., Behn, M., Hirth, G., & Jagoutz, O. (2018, 07). Inferring crustal viscosity from seismic velocity: Application to the lower crust of Southern California. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8193
Badt, N. Z., Tullis, T. E., & Hirth, G. (2017, 08). Experimental Study of Thermal Pressurization Weakening and the Role of Fault Roughness. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7712
Shinevar, W., Behn, M., Hirth, G., & Jagoutz, O. (2017, 08). Inferring Crustal Viscosity from Seismic Wavespeeds: Applications to the Rheologic Structure of Southern California. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7517
Shinevar, W., Behn, M., Hirth, G. H., & Jagoutz, O. (2016, 07). Inferring Southern California Crustal Viscosity Structure from the SCEC Community Velocity Model. Poster Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6363
Beeler, N. M., Tullis, T. E., & Hirth, G. H. (2015). On the depth extent of co-seismic rupture. Bulletin of the seismological society of america, (in preparation). SCEC Contribution 6163
DiMonte, A. A., Ault, A. K., Hirth, G., & Bradbury, K. K. (2022). Hematite accommodated shallow, transient Pleistocene slow slip in the exhumed southern San Andreas fault system, California, USA. Geology, 50(12), 1443-1447. doi: 10.1130/G50489.1. SCEC Contribution 12615
Badt, N. Z., Tullis, T. E., Hirth, G., & Goldsby, D. L. (2020). Thermal Pressurization Weakening in Laboratory Experiments. Journal of Geophysical Research: Solid Earth, 125(5). doi: 10.1029/2019JB018872. SCEC Contribution 9941
Calzolari, G., Ault, A. K., Hirth, G., & McDermott, R. (2020). Hematite (U-Th)/He thermochronometry detects asperity flash heating during laboratory earthquakes. Geology, 48, 514-518. doi: 10.1130/G46965.1. SCEC Contribution 10102
Shinevar, W. J., Behn, M. D., Hirth, G., & Jagoutz, O. (2018). Inferring crustal viscosity from seismic velocity: Application to the lower crust of Southern California. Earth and Planetary Science Letters, 494, 83-91. doi: 10.1016/j.epsl.2018.04.055. SCEC Contribution 8944
Shinevar, W., Behn, M., & Hirth, G. (2015). Compositional dependence of lower crustal viscosity. Geophysical Research Letters, 42(20), 8333-8340. doi: 10.1002/2015GL065459. SCEC Contribution 7239
Beeler, N. M., Hirth, G. H., Thomas, A. M., & Bürgmann, R. (2015). Effective stress, friction and deep crustal faulting. Journal of Geophysical Research,. SCEC Contribution 1971
Hirth, G. H., & Beeler, N. M. (2015). The role of fluid pressure on frictional behavior at the base of the seismogenic zone. Geology, 43(3), 223-226. SCEC Contribution 1885
Thatcher, W. R., Hearn, E. H., & Hirth, G. H. (2013). Ductile Rheology of the Southern California Lithosphere: Constraints from Deformation Modeling, Rock Mechanics, and Field Observations. Eos, Transactions, American Geophysical Union, 94(32), 280. doi: 10.1002/20. SCEC Contribution 1824
Tullis, T. E., Bürgmann, R., Cocco, M., Hirth, G. H., King, G. C., Oncken, O., Otsuki, K., Rice, J. R., Rubin, A. M., Segall, P., Shapiro, S., & Wibberley, C. A. (2007). Group Report: Rheology of Fault Rocks and Their Surroundings. In M. Handy, G. H. Hirth, & N. Hovius (Eds.), Tectonic Faults: Agents of Change on a Dynamic Earth, (, pp. 183-204) Cambridge, USA: MIT Press SCEC Contribution 1392
Tullis, T. E., Bürgmann, R., Cocco, M., Hirth, G. H., King, G. C., Oncken, O., Otsuki, K., Rice, J. R., Rubin, A. M., Segall, P., Shapiro, S., & Wibberley, C. A. (2007). Rheology of fault rocks and their surroundings. Cambridge, USA: MIT Press. SCEC Contribution 1054
Last updated Sep 21, 2023.
