Group B, Poster #136, Fault and Rupture Mechanics (FARM)
Back-propagating Earthquakes on a Simple Fault
Poster Image:
Poster Presentation
2024 SCEC Annual Meeting, Poster #136, SCEC Contribution #13843 VIEW PDF
ed with velocity-dependent friction, precludes crack-like solutions at constant residual stress. Back propagation then occurs when a pulse-like rupture transitions into a crack-like rupture, a phenomenon that can occur under less stringent conditions than previously assumed and does not require fault heterogeneity. The shift between rupture modes is driven by velocity-weakening friction and happens when the slip rate becomes non-uniform and decreases below a specific threshold. Our research presents a simple, fundamental model for back-propagating earthquakes, indicating their potential to be more prevalent than previously acknowledged.
SHOW MORE
SHOW MORE