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How giant earthquakes can form at fault planes where theory says they should not

phys.org

Satoshi Ide's team found giant earthquakes forming exactly where classic theory says they cannot — raising the question of what we're missing about fault planes.

Stick-Slip Friction ModelFault MechanicsSeismic Gap TheoryPlate Tectonics
How giant earthquakes can form at fault planes where theory says they should not

Theory Briefing

  • Satoshi Ide's University of Tokyo group found that classic earthquake generation theory breaks down in certain fault plane areas previously considered safe.
  • The research challenges the foundational model used to predict where large earthquakes can and cannot originate.
  • If the theory's "no-go zones" can still produce giant quakes, existing hazard maps and risk models may need rethinking.