G010
Illuminating Complex Earthquake Rupture Processes with Coseismic Geodesy
Session ID#: 252043
Session Description:
The devastating scale of the March 28, 2025 M7.7 Sagaing, Myanmar earthquake highlights the need to better understand and anticipate large earthquake rupture processes. This event, alongside others like those in Türkiye (2023), Palu (2018), and Tibet (2021, 2025), underscores an era where high-resolution geodetic observations (InSAR, GNSS, optical image correlation) offer unprecedented opportunities to dissect and understand earthquake rupture processes. This session invites contributions that leverage accurate, high-resolution geodetic observations to advance our fundamental understanding of earthquake source physics. We particularly encourage submissions that: (1) Constrain detailed rupture kinematics and dynamics; (2) Investigate the role of fault geometry and structural complexity; (3) Explore interactions between seismic slip and triggered phenomena (e.g., aftershocks, aseismic slip, landslides); (4) Integrate geodetic data with seismological, geological, or modeling approaches for comprehensive source characterization and hazard assessment. Studies focusing on the 2025 Myanmar earthquake, as well as other well-observed events worldwide, are highly welcome.
Co-Sponsor(s):
Index Terms:
1209 Tectonic deformation [GEODESY AND GRAVITY]
1240 Satellite geodesy: results [GEODESY AND GRAVITY]
7215 Earthquake source observations [SEISMOLOGY]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
Primary Convener: Eric Ostrom Lindsey, University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, United States
Conveners: Anne Socquet, University Grenoble Alpes, ISTerre Institute of Earth Sciences, Grenoble, France, Yu Wang, Department of Geoscience, National Taiwan University, Taipei, Taiwan, Nadine G Reitman, U.S. Geological Survey, Geologic Hazards Science Center, Golden, United States and Dara E Goldberg, USGS Geologic Hazards Science Center, Golden, United States
The 2025 Mw7.7 Mandalay, Myanmar, earthquake reveals complex earthquake cycle on the Sagaing fault (Invited) (1875473)
Solène L Antoine1, Rajani Shrestha1, Chris Milliner2, Kyungjae IM3, Chris Rollins4, Kang Wang5, Kejie Chen6 and Jean-Philippe Avouac3, (1)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (2)California Institute of Technology, Pasadena, CA, United States, (3)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (4)GNS Science, Earthquake Physics and Statistics, Lower Hutt, New Zealand, (5)EarthScope Consortium, Washington DC, United States, (6)Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
Strengths and limitations of high-resolution satellite optical geodesy for illuminating earthquake deformation (Invited) (1879925)
Catherine Hanagan1, Stephen DeLong2, Nadine G Reitman3, Alexandra E Hatem3 and Jessica Thompson Jobe4, (1)U.S. Geological Survey, Earthquake Science Center, Golden, United States, (2)U.S. Geological Survey, Moffett Field, CA, United States, (3)U.S. Geological Survey, Geologic Hazards Science Center, Golden, United States, (4)USGS Geologic Hazards Science Center, Golden, United States
Seismic Source Investigation of the 2025 Southern Tibetan Plateau and Central Myanmar Earthquakes Using SAR-based Observations and Analytical Modeling (1890029)
Silvia Puliero1, Valerio Ruocco1, Simone Atzori1, Marco Polcari1, Cristiano Tolomei1, Andrea Antonioli1, Matteo Albano1, Marco Moro1, Salvatore Stramondo1, Michele Saroli1,2, Pasquale Striano3, Fernando Monterroso3, Manuela Bonano3, Francesco Casu3, Claudio De Luca3 and Riccardo Lanari3, (1)INGV National Institute of Geophysics and Volcanology, Rome, Italy, (2)Università degli Studi di Cassino e del Lazio meridionale, Cassino, Italy, (3)CNR Institute for the Electromagnetic Sensing of the Environment, Naples, Italy
Near Instantaneously Triggered Mw 5.9 Aftershock During the 2025 Mw 7.1 Dingri Earthquake Revealed by Radar Interferometry (1890157)
Xin Wang1, Jun Zhu2, Duo Li3, Xiaohua Xu1, Zefeng Li1, David T Sandwell4, Dengchen Hao5, Chengli LIU6 and Rongxin Fang7, (1)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (2)University of Science and Technology of China, State Key Laboratory of Precision Geodesy, Hefei, China, (3)GNS Science, Montreal, New Zealand, (4)Scripps Institution of Oceanography, University of California San Diego, Institute of Geophysics and Planetary Physics, La Jolla, United States, (5)China Centre for Resources Satellite Data and Application, Beijing, China, (6)China University of Geosciences, Wuhan, Wuhan, China, (7)Wuhan University, GNSS Research Center, Wuhan, China
Surface rupture and slip distribution of the 2025 M7.7 Mandalay earthquake: Implications for length scaling of supershear earthquakes (1893160)
Nadine G Reitman1, Yu Wang2, Yu-Ting Kuo3, Catherine Hanagan4, Alexandra Hatem1, Christopher B DuRoss1, Chun-Chi Chen2, Dara E Goldberg1, Harriet Zoe Yin1, Richard W Briggs1, Jessica Thompson Jobe1, Sylvia Rose Nicovich, PhD1, Emerson M Lynch, PhD1, Robert G. Schmitt1, Joseph Powell1 and William D Barnhart5, (1)USGS Geologic Hazards Science Center, Golden, United States, (2)Department of Geoscience, National Taiwan University, Taipei, Taiwan, (3)National Chung Cheng University, Department of Earth and Environment Sciences, Chiayi, Taiwan, (4)U.S. Geological Survey, Earthquake Science Center, Golden, United States, (5)U.S. Geological Survey, Earthquake Hazards Program, Golden, United States
Constraining On- and Off-Fault Nonlinear Dynamic Rupture Parameters via the First Hierarchical Bayesian Inversion of GNSS and Satellite Data for the 2019 Mw 7.1 Ridgecrest Earthquake (1906068)
Alice-Agnes Gabriel1, Zihua Niu2, Maximilian Kruse3, Linus Seelinger3, Nico Schliwa4 and Heiner Igel2, (1)Scripps Institution of Oceanography, La Jolla, United States, (2)Ludwig Maximilians University of Munich, Department of Earth and Environmental Sciences, Munich, Germany, (3)Karlsruhe Institute of Technology, Scientific Computing Center, Karlsruhe, Germany, (4)Ludwig Maximilians University of Munich, Munich, Germany
Localized Crustal Deformation Along the Hida Mountain Range Following the 2024 Noto Peninsula Earthquake Detected by Dense Geodetic Observations (1907506)
Shogo Nagaoka, Hokkaido University, Deptartment of Natural History Sciences, Sapporo, Japan, Youichiro Takada, Hokkaido University, Faculty of Science, Sapporo, Japan, Takuya Nishimura, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, Takeshi Sagiya, Nagoya University, Disaster Mitigation Research Center, Nagoya, Japan and Yusaku Ohta, Tohoku University, Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Sendai, Japan
Identification of Previously Unmapped Faults using Phase Gradient Interferometry Nearby Major Earthquakes. (1918521)
Rubi Garcia1, David T Sandwell2 and Yehuda Bock2, (1)Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, University of California San Diego, Institute of Geophysics and Planetary Physics, La Jolla, United States
Rupture Geometry and Slip Distribution of the 2025 Mw 7.8 Myanmar Earthquake Constrained by Sentinel-1A/2 and ALOS-2 Satellite Data (1932736)
Yuri A Fialko1, Thomas Ulrich2, Xiaoyu Zou3, Nico Schliwa4, Mathilde Marchandon5, Fengzhou Tan6, Alice-Agnes Gabriel6, Wenyuan Fan7 and Peter M Shearer8, (1)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Ludwig-Maximilians-Universität München, Department of Earth and Environmental Sciences, Munich, Germany, (3)Scripps Institution of Oceanography, University of California, San Diego, Institute of Geophysics and Planetary Physics, La Jolla, United States, (4)ETH Zurich, Institute of Geophysics, Zurich, Switzerland, (5)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (6)University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States, (7)Scripps Institution of Oceanography, La Jolla, United States, (8)Univ California San Diego, La Jolla, United States
Geodetic and seismic evidence for complex fault interactions and slow slip in the Palghar intraplate swarm, western India (1940572)
Ratna Bhagat1,2, K.M. Sreejith3, Pathikrit Bhattacharya1,2, Harsha Bhat4, Claudio Satriano5 and Vineet Kumar Gahalaut6, (1)National Institute of Science Education and Research, School of Earth and Planetary Sciences, Khurda, India, (2)Homi Bhabha National Institute, Mumbai, India, (3)Space Applications Centre, Geosciences Division, Ahmedabad, India, (4)Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Paris, France, (5)Institut de Physique du Globe, Paris, France, (6)Wadia Institute of Himalayan Geology, Dehradun, Uttarakhand, India
Unveiling Complex Rupture Dynamics of the 2025 Myanmar Earthquake through Integrated Field and Satellite Observations (1958681)
Şule Gürboğa, Istanbul Technical University, Department of Geological Engineering, Washington, United States, Fatma Canaslan Comut, Ministry of Interior Disaster and Emergency Management Presidency (AFAD), Denizli, Turkey, Sen Lyu, GFZ Helmholtz Centre for Geosciences, Germany, Potsdam, Germany, Mahdi Motagh, GFZ Helmholtz Center for Geosciences, Potsdam, Germany, Kaung Si Thu, Dagon University, Yangon, Myanmar, Macit Karadağlar, General Directorate of Mineral Research and Exploration, Ankara, Turkey and Fatma Canaslan Çomut
Mature fault mechanics revealed by the highly efficient 2025 Mandalay earthquake (1972324)
Eric Ostrom Lindsey1, Yu Wang2, Yu-Ting Kuo3, Myo Thant4 and Tha Zin Htet Tin4, (1)University of New Mexico Main Campus, Albuquerque, NM, United States, (2)Department of Geoscience, National Taiwan University, Taipei, Taiwan, (3)National Chung Cheng University, Department of Earth and Environment Sciences, Chiayi, Taiwan, (4)Myanmar Earthquake Committee, Yangon, Myanmar
Simulating GNSS-derived TEC to uncover the rupture complexity of the 2024 Mw7.5 Noto earthquake (1982219)
Yoshihiro Kaneko, Kyoto University, Graduate School of Science, Kyoto, Japan, Pavel Inchin, Computational Physics Inc. Springfield, Springfield, VA, United States, Matthew D Zettergren, Embry-Riddle Aeronautical University, Department of Physical Sciences, Daytona Beach, FL, United States, Jonathan B Snively, Embry-Riddle Aeronautical University, Daytona Beach, FL, United States and Rintaro Enomoto, Kyoto University, Department of Geophysics, Kyoto, Japan
Displacement Gradients and Distributed Deformation from PlanetScope Imagery of the 6 February 2023 Mw 7.8 Pazarcık–Kahramanmaraş Earthquake (2001219)
Thomas Casteel, University of Florida, School of Forest, Fisheries, and Geomatics Sciences (FFGS), Ft Walton Beach, FL, United States and Chunli Dai, University of Florida, School of Forest, Fisheries, and Geomatics Sciences (FFGS)., Gainesville, United States
