 |
|
Hao Guo
Personal ProfileHao Guo, Associate Professor and Senior Research Scientist in Geophysics and Seismology, member of the Tectonophysics Committee of the Seismological Society of China. He received his Ph.D. in Geophysics from the University of Science and Technology of China in 2019, including one year of joint training at the Woods Hole Oceanographic Institution in the United States. From September 2019 to June 2023, he conducted postdoctoral research at the University of Wisconsin–Madison, where he served as a Scientist II from July 2023 to January 2026. He joined Nanjing University in February 2026. He has published more than 20 scientific papers, including 11 as first or corresponding author, in journals such as Nature Geoscience, EPSL, GRL, JGR-SE, GJI, and SRL. His primary research focuses on multi-scale imaging of Earth’s interior structure and inversion of earthquake source parameters. Specific research directions include: (1) Development of advanced seismological algorithms and software for earthquake location, seismic tomography, and source parameter inversion (e.g., stress drop), aiming to more accurately resolve subsurface physical state, mechanical properties, and geological and geodynamic processes across different spatial scales. He has developed several algorithms and software packages, including triple-difference seismic location (hypoTD), triple-difference seismic tomography (tomoTD), Vp/Vs consistency-constrained double-difference seismic tomography (tomoDDMC), double-difference seismic attenuation tomography (tomoDDQ), and joint spectral ratio inversion method (SpecRat). (2) High-resolution imaging of subduction zones, oceanic and continental transform faults, and intraplate faults, to investigate how spatiotemporal variations in physical and rheological properties control fault slip behaviors (e.g., earthquakes, tectonic tremor, slow slip, and aseismic creep) and earthquake rupture processes, with implications for seismic hazard assessment. (3) Microseismic monitoring and 4-D seismic imaging, aiming to detect spatiotemporal changes in rock physical properties within subsurface energy systems (e.g., geothermal reservoirs) and understand mechanisms of induced seismicity, supporting safe and efficient development of subsurface energy resources. Undergraduate and graduate students, postdoctoral researchers, research staff, visiting students, and visiting scholars who are interested in the above or related research areas are welcome to join the group. Postdoctoral Recruitment: Educational BackgroundWork ExperienceAcademic ServiceResearch InterestsTeachingResearch Projects2. National Natural Science Foundation of China (NSFC), General Program (PI, 2027-2030) 1. Nanjing University Research Start-up Fund (PI, 2026-2028) PublicationsAll journal publications and conference abstracts can be found at Google Scholar: https://scholar.google.com/citations?user=WlnHfc0AAAAJ&hl=en Peer-Reviewed Publications (*Corresponding Author): 22. Wang, J., Zhang, H.*, Hou, Z.*, Xu, B., Guo, H., Thurber, C. H., & van der Hilst, R. D. (2026). Crustal weakening by mantle upwelling in the southeastern Tibetan Plateau. Geology. https://doi.org/10.1130/G54154.1 21. Guo, 20. Guo, H.*, Thurber, C., Cunningham, E., Cardiff, M., Lord, N., Sobol, P., Wang, H., & Feigl, K. L. (2025). Microseismicity Modulation Due To Changes in Geothermal Production at San Emidio, Nevada, USA. Geophysical Research Letters, 52(4). https://doi.org/10.1029/2024gl112063 19. Liu, M., Tan, Y.J.*, Guo, H.*, Li, H.Y., Lu, R.Q., Jiang, J.Z. (2025). Fluids and fault structures underlying the complex foreshock sequence of the 2021 MW 6.1 Yangbi earthquake. Earth and Planetary Science Letters, 651, 119173. https://doi.org/10.1016/j.epsl.2024.119173. 18. Guo, H.*, Atterholt, J.W., McGuire, J.J., Thurber, C.H. (2024). Evidence for low effective stress within the crust of the subducted Gorda plate from the 2022 December Mw 6.4 Ferndale Earthquake Sequence.Seismological Research Letters. 96 (3), 1504–1520. doi:10.1785/0220240078. 17. Wang, H.F.*, Sone, H., Cardiff, M., Guo, H., Thurber, C., Luo, X., Feigl K.L., Sherman, C. (2024). Poroelastic Stress Cycling and Microseismic Activity at the San Emidio Geothermal Field, NV (USA). American Rock Mechanics Association (ARMA) Golden 2024 Symposium, 24–0813. https://doi.org/10.56952/ARMA-2024-0813 (also available at https://go.wisc.edu/sb1hm1) 16. Chen, G., Li, J.*, Guo, H. (2024). Deep Generative Model Conditioned by Phase Picks for Synthesizing Labeled Seismic Waveforms with Limited Data. IEEE Transactions on Geoscience and Remote Sensing, 62, 1-15, 5910415.doi: 10.1109/TGRS.2024.3384768 15. Guo, H.*, Thurber, C., Warren, I., Heath, B. A., Folsom, M., Sone, H., et al. (2023). Enhanced microseismicity during production pumping cessation at the San Emidio geothermal field (Nevada, USA) in December 2016. Journal of Geophysical Research: Solid Earth, 128, e2023JB027008. https://doi.org/10.1029/2023JB027008 14. Jahnke, B., Sone, H., Guo, H., Sherman, C., Warren, I., Kreemer, C., Thurber, C. H., & Feigl, K. L. (2023). Geomechanical analysis of the geothermal reservoir at San Emidio, Nevada. Geothermics, 110, 102683. https://doi.org/10.1016/j.geothermics.2023.102683 13. Guo, H.*, Thurber, C.H. (2022). Temporal changes in seismic velocity and attenuation at The Geysers geothermal field, California, from double-difference tomography, Journal of Geophysical Research: Solid Earth, 127, e2021JB022938. https://doi.org/10.1029/2021JB022938 12. Tan, Y., Xing, H., Jin, Z., Wang, J., Pang, S., Guo, H., et al. (2022). Seismogenesis of the 2021 Mw 7.1 earthquake sequence near the northeastern Japan revealed by double-difference seismic tomography. Earth and Planetary Science Letters, 594, 117738. https://doi.org/10.1016/j.epsl.2022.117738 11. Guo, H.*, McGuire, J.J.*, & Zhang, H.* (2021). Correlation of porosity variations and rheological transitions on the southern Cascadia megathrust. Nature Geoscience, 14, 341–348. https://doi.org/10.1038/s41561-021-00740-1 10. Guo, H.*, & Thurber, C.H. (2021). Double-difference seismic attenuation tomography method and its application to The Geysers geothermal field, California, Geophysical Journal International, ggab017. https://doi.org/10.1093/gji/ggab017 9. Hu, J., Zhao, T., Bai, C.Y., Guo, H., Wang, Y., Li, X.W., Xin, H.L.* (2021). Three-dimensional P and S wave velocity structure and earthquake relocation of the May 21, 2021 Yangbi MS 6.4 source region. Chinese Journal of Geophysics, 64(12), 4488-4509. doi: 10.6038/cjg2021P0456 8. Zhang, H.*, Wang, F., Myhill, R.*, & Guo, H. (2019). Slab morphology and deformation beneath Izu-Bonin, Nature Communications, 10, 1310. https://doi.org/10.1038/s41467-019-09279-7 7. Share, PE.*, Guo, H., Thurber, C.H., Zhang, H., & Ben-Zion, Y. (2019). Seismic imaging of the southern California plate boundary around the south-central Transverse Ranges using double-difference tomography. Pure Appl. Geophys. 176, 1117-1143. doi.org/10.1007/s00024-018-2042-3 6. Li, C.*, Peng, Z., Yao, D., Guo, H., Zhan, Z., & Zhang, H. (2018). Abundant Aftershock Sequence of the 2015 Mw7. 5 Hindu Kush Intermediate-Depth Earthquake. Geophysical Journal International. https://doi.org/10.1093/gji/ggy016 5. Guo, H., Zhang, H.*, & Froment, B. (2018). Structural control on earthquake behaviors revealed by high-resolution Vp/Vs imaging along the Gofar transform fault, East Pacific Rise. Earth and Planetary Science Letters, 499, pp.243-255. https://doi.org/10.1016/j.epsl.2018.07.037 4. Guo, H., Zhang, H.*, Nadeau, R. M., & Peng, Z. (2017). High-resolution deep tectonic tremor locations beneath the San Andreas Fault near Cholame, California, using the double-pair double-difference location method. Journal of Geophysical Research: Solid Earth, 122(4), 3062-3075. https://doi.org/10.1002/2016JB013919 3. Zhang, H.*, Nadeau, R. M., & Guo, H. (2017). Imaging the non-volcanic tremor zone beneath the San Andreas fault at Cholame, California using station-pair double-difference tomography. Earth and Planetary Science Letters, 460, 76-85. https://doi.org/10.1016/j.epsl.2016.12.006 2. Guo, H., & Zhang, H.* (2017). Development of double-pair double difference earthquake location algorithm for improving earthquake locations. Geophysical Journal International, 208(1), 333-348. https://doi.org/10.1093/gji/ggw397 1. Hu, J., Qian, J., Guo, H., et al. (2016). Station-pair double-difference seismic tomography using Lujiang seismic network with air-gun data from the Yangtze river active source experiment in Anhui province. Earthquake Research in China, 32(2):343-355. (in Chinese) Non-Peer-Reviewed Publications: 5. Luo, X., Sherman, C.S., Feigl, K., Murphy, J., Akerley, J., Sone, H., Cardiff, M.A., Hampton, J., Guo, H., Lord, N.E., Sobol, P.E., C. H. Thurbur, H. F. Wang. (2024). WHOLESCALE modeling of hydro-mechanical processes at San Emidio, Nevada, US on time scales of days. Proceedings, 49th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. SGP-TR-227. https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Luo.pdf 4. Feigl, K. L., Guo, H., Cunningham, E., et al. (2023). The 2022 WHOLESCALE deployment at San Emidio, Nevada, US. Proceedings, 48th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. SGP-TR-224. https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2023/Feigl.pdf 3. Cardiff, M.A., Sherman, C., Guo, H., et al. (2023). WHOLESCALE - calibration and simulation of hydro-mechanical behavior at San Emidio, Nevada during operational changes. Proceedings, 48th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford. SGP-TR-224. https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2023/Cardiff.pdf 2. Feigl, K., Tung, S., Guo, H., et al. (2022). Overview and preliminary results from the WHOLESCALE project at San Emidio, Nevada, US. Proceedings, 47th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. SGP-TR-223. https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2022/Feigl.pdf 1. Jahnke, J., Guo, H., Heath, B., et al. (2022). Spatial-temporal stress heterogeneity in the geothermal reservoir at San Emidio, Nevada, U.S. Proceedings, 47th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. SGP-TR-223. https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2022/Jahnke.pdf Patent: 1. A Double-Pair Double-Difference Seismic Location Method and Device. China Patent. Inventors: Hao Guo and Haijiang Zhang. Issued on August 28, 2020. Invited Talks: 16. School of Earth Sciences and Engineering at Nanjing University, June 03, 2025. Title: Induced Microseismicity due to Geothermal Production Pumping Cessation. 15. Department of Earth and Space Sciences Seminar at the Southern University of Science and Technology, Jan 12, 2025. Title: High-Resolution Passive Seismic Characterization of Material Properties and Mechanical States at Active Plate Boundaries and Geothermal Systems. 14. Department of Earth and Space Sciences Seminar at the Southern University of Science and Technology, Sept 30, 2024. Title: Double-Difference Seismic Attenuation Tomography Method and its Application to geothermal and subduction zones. 13. Key Lab of Earth and Planetary Physics Seminar at CAS, Sept 28, 2024. Title: Double-Difference Seismic Attenuation Tomography Method and its Application to geothermal and subduction zones 12. Key Lab of Submarine Geosciences and Prospecting Techniques Seminar at Ocean University of China, Sept. 27, 2024. Title: Seismic Imaging Reveals Downdip Variations in Physical State and Rheological Property on the Cascadia Megathrust 11. School of Geophysics and Geomatics Seminar at China University of Geosciences, Sept. 25, 2024. Title: Double-Difference Seismic Attenuation Tomography Method and its Application to geothermal and subduction zones 10. Institute of Geodesy and Geophysics Seminar at Chinese Academy of Sciences, Sept. 24, 2024. Title: Double-Difference Seismic Attenuation Tomography Method and its Application to geothermal and subduction zones 9. Earth and Planetary Physics Seminar at USTC, Sept. 23, 2024. Title: Double-Difference Seismic Attenuation Tomography Method and its Application to geothermal and subduction zones 8. School of Earth Sciences Seminar at Zhejiang University, Sept. 20, 2024. Title: Double-Difference Seismic Attenuation Tomography Method and its Application to geothermal and subduction zones 7. 2024 UW-Madison Geoscience Department VEC Seminar, Feb. 13, 2024. Title: Small Geothermal Earthquakes 6. 2024 Stress Drop Validation Project Workshop, Jan. 22, 2024. Title: Can we mitigate the trade-off between source and path attenuation parameters? 5. The Geodesy and Geophysics Seminar of the Upper Midwest (GYPSUM), Oct. 10, 2023. Title: Enhanced Microseismicity during Production Pumping Cessation at the San Emidio Geothermal Field, Nevada in December 2016 4. University of California, Berkeley Active Tectonics Group, Feb. 8, 2023. Title: Correlation of porosity variations and rheological transitions on the southern Cascadia megathrust 3. The Geodesy and Geophysics Seminar of the Upper Midwest (GYPSUM) Seminar, Nov. 8, 2022. Title: Double-Difference Seismic Attenuation Tomography 2. 2022 Southern California Earthquake Center (SCEC) Stress Drop Workshop (Keynote), Sept. 10, 2022. Title: Spatial Variations in Attenuation Structure from Double-Difference Seismic Attenuation Tomography 1. Geophysical Frontiers Symposium at University of Science and Technology of China, June 19, 2019. Title: Variations in porosity and fluid content correlate with rheological transitions along the megathrust in the southern Cascadia subduction zone Honors and Awards1. 2024 Anhui Province Natural Science Award (Second Class) Project Title: Evolution of Plate Subduction from the Earth's Surface to the Deep Interior. Awardees: Haijiang Zhang, Wei Leng, Huajian Yao, Jikun Feng, Hao Guo Group |