JpGU-AGU Joint Meeting 2026

Session information

[E] Poster

S (Solid Earth Sciences ) » S-SS Seismology

[S-SS09] From Precursors to Recovery: Evolving insights into the 2011 Mw 9.0 Tohoku-oki Earthquake

Thu. May 28, 2026 5:15 PM - 7:00 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

The 2011 Mw 9.0 Tohoku-oki earthquake remains one of the best-recorded megathrust events. Fifteen years on, an exceptional variety of observations from onshore and seafloor geodesy, strong-motion and broadband seismology, tsunami and oceanographic records, geological and drilling constraints, to laboratory experiments and physics-based and data-driven modeling now enables a more integrative understanding of the full earthquake cycle.

This session invites contributions that consider pre-seismic, co-seismic, and post-seismic processes, including slip deficit and interplate coupling, foreshocks and slow earthquakes, large near-trench slip and tsunami generation, structural and material controls on rupture, aseismic afterslip, viscoelastic and poroelastic responses, stress transfer and seismicity migration, and longer-term recurrence gleaned from historical and paleo-records. We particularly welcome studies that bridge methods or disciplines such as data assimilation that fuses geodesy, seismology, and tsunami constraints; dynamic-to-kinematic rupture linkages; integration of drilling or petrological data with geophysical inversions; physics-informed neural networks (PINNs) and related machine-learning approaches grounded in physics.

Our goal is to promote cross-disciplinary synthesis that clarifies how multi-scale processes interact across the Tohoku-oki system and, by extension, other subduction zones. We encourage updates to established findings as well as new perspectives that challenge or refine prevailing views. Both observational and modeling studies are welcome, and submissions addressing implications for hazard assessment and forecasting are encouraged. Our goal is to foster integrative understanding through cross-disciplinary discussion.

5:15 PM - 7:00 PM

*Vlad Constantin Manea1, Marina Manea1, Shoichi Yoshioka2,3, Erika Moreno4, Nobuaki Suenaga2 (1. Computational Geodynamics Laboratory, Instituto de Geociencias, Universidad Nacional Autonoma de Mexico, 2. Research Center for Urban Safety and Security, Kobe University, Kobe, Japan., 3. Department of Planetology, Graduate School of Science, Kobe University, Kobe 657-8501, Japan, 4. Earthquake Research Institute, University of Tokyo, Tokyo, 113-0032, Japan)

5:15 PM - 7:00 PM

*Kyosuke Tsutsui1, Jun Muto2, Yusaku Ohta3, Sambuddha Dhar4 (1. the Fault and Crustal Mechanics Group, Department of Earth and Environmental Sciences, Faculty of Science, Tohoku University., 2. Department of Earth Science, Tohoku University, 3. Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 4. Department of Geosciences, Graduate School of Science, Osaka Metropolitan University)

5:15 PM - 7:00 PM

Xindi Gong1, Ziheng Zhang1, Dunyu Liu2, Simone Puel4, Dingcheng Luo6, Umberto Villa1, Thomas O'Leary-Roseberry5, *Thorsten W Becker2,3,1, Omar Ghattas1 (1. Oden Institute for Computational Engineering & Sciences, The University of Texas at Austin, 2. Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin, 3. Department of Earth and Planetary Sciences, Jackson School of Geosciences, The University of Texas at Austin, 4. Moody's Analytics, 5. Department of Mathematics, The Ohio State University, 6. School of Mathematical Sciences & Centre for Data Science, Queensland University of Technology, Brisbane, Australia)

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