T007
Earthquake Interaction and Static & Dynamic Coulomb Stress Triggering
Session ID#: 246761
Session Description:
In the past 15 years, numerous large earthquakes have struck in progressive sequences, with time spans ranging from minutes to decades, and earthquakes separated by a few km to hundreds of km. Examples include the 2009 M 7.7, 7.8, and 7.4 Vanuatu, 2011 M 9.1 and M 7.9 Tohoku, 2012 M 8.6 and M 8.2 Wharton Basin, 2019 M 6.4 and M 7.1 Ridgecrest, 2023 M 7.8 and M 7.7 Kahramanmaras earthquakes. In addition, the 2012 M 8.6 Wharton Basin shock triggered worldwide aftershocks, a phenomenon that can only be explained by dynamic triggering imparted by surface waves. Efforts to understand and forecast these occurrences have rapidly evolved, with attempts to capture the interaction and decays by Coulomb stress changes, rate/state friction, aftershock (ETAS) statistics, and fluid diffusion. This session welcomes analyses of such interactions, as well as testable forecasts of earthquake occurrence, and software tools to investigate these processes.
Co-Sponsor(s):
Index Terms:
7209 Earthquake dynamics [SEISMOLOGY]
7223 Earthquake interaction, forecasting, and prediction [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8164 Stresses: crust and lithosphere [TECTONOPHYSICS]
Primary Convener: Ross S Stein, Temblor, Inc., Tiburon, United States
Conveners: Shinji Toda, Tohoku University, International Research Institute of Disaster Science, Sendai, Japan, Jian Lin, Southern University of Science and Technology, Shenzhen, China and Volkan Sevilgen, Temblor, Inc., Tiburon, United States
Student/Early Career Convener: Chris Rollins, GNS Science, Lower Hutt, New Zealand
Dynamic triggering of earthquakes in Coso and Ridgecrest, California (1863260)
YuFang Hsu, University of Southern California, Department of Earth Sciences, Los Angeles, United States, Xiaofeng Meng, Statewide California Earthquake Center, Los Angeles, United States and Yehuda Ben-Zion, University of Southern California, Department of Earth Sciences and Statewide California Earthquake Center, Los Angeles, United States
Stress-Mediated Multi-Fault Rupture Dynamics of the 2023 Kahramanmaraş Earthquake Sequence, Türkiye: Implications for Seismic Hazard in Complex Continental Fault Systems (1872962)
Suleyman Sami Nalbant1, Fatih Uzunca2, Ian Main3, Murat Utkucu2 and Hatice Durmus4, (1)Iğdir University, Geography, Iğdir, Turkey, (2)Sakarya University, Geophysics, Sakarya, Turkey, (3)The University of Edinburgh, Geosciences, Edinburgh, United Kingdom, (4)Kütahya Dumlupınar University, Geological Engineering, Kütahya, Turkey
Coseismic deformation and seismic activities associated with 2025 Mw7.7 Myanmar earthquake (1883106)
Siyuan Yang1, Jian Lin1,2, Kai Wang3, Xiaohua Xu4 and Xin Wang4, (1)Southern University of Science and Technology, Shenzhen, China, (2)South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, (3)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (4)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China
Introducing Coulomb 4.0: Enhanced graphic-rich stress interaction and deformation software for research and teaching of earthquakes and volcanoes (1885351)
Kaede Yoshizawa1, Shinji Toda2, Ross S Stein3, Volkan Sevilgen3, Jian Lin4 and Konstantinos Leptokaropoulos5, (1)Tohoku University Graduate School of Science, Sendai, Japan, (2)Tohoku University, International Research Institute of Disaster Science, Sendai, Japan, (3)Temblor, Inc., Tiburon, United States, (4)Southern University of Science and Technology, Shenzhen, China, (5)MathWorks, Cambridge, United Kingdom
Complex Multiplet Sequences Around the Explorer Microplate, Canada (1888855)
Lekima Yakuden, University of Victoria, Victoria, BC, Canada, Edwin Nissen, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada and Honn Kao, Geological Survey Canada, Sidney, BC, Canada
Why are large earthquakes rarely overdue for faults globally? (1895113)
Vasiliki Mouslopoulou, National Observatory of Athens, Institute of Geodynamics, Athens, Greece, Andy Nicol Prof, University of Canterbury, Geohazards & Tectonics, Christchurch, New Zealand, Andy Howell, University of Canterbury, Christchurch, New Zealand and Jonathan Griffin, Community Safety Branch, Geoscience Australia, Canberra, Australia
Strong Fault Interaction in Double-Vergence Structure: Lessons From the 2022 Yuli Earthquake and the 2022 Chihshang Earthquake, Eastern Taiwan (1905558)
Yuri Ishimaru, Hokkaido University, Graduate School of Science, Sapporo, Japan, Youichiro Takada, Hokkaido University, Faculty of Science, Sapporo, Japan, Kuo-En Ching, National Cheng Kung University, Department of Geomatics, Tainan, Taiwan and Wu-Lung Chang, National Central University, Department of Earth Sciences, Kanagawa, Japan
The 2023 Herat, Afghanistan Quadruplet — Sequential Rupture of Four M6 Earthquakes Due to Fault Segmentation (1979796)
Jochen Braunmiller, University of South Florida Tampa, School of Geosciences, Tampa, FL, United States and Abdolreza Ghods, Institute of Advanced Studies in Basic Sciences, Department of Earth Sciences, Zanjan, Iran
