The Genetic Basis of Creativity

The state of pore fluid pressure and 3D megathrust earthquake dynamics

“…Such variations in P f are one possible mechanism of conceptual seismic asperities, inducing heterogeneity in dynamic fault motion (Lay et al, 2012;Bürgmann, 2018). Sediments and high P f have been proposed as important mechanisms aiding stable sliding along geometric, frictional and rheological barriers, while (less effectively) thermal pressurization may provide a mechanism for stress-roughening slip events (Wibberley & Shimamoto, 2005;Barbot, 2019;Perry et al, 2020;Gabriel et al, 2020). Our presented scenarios serve as building blocks for future along-arc heterogeneous models, that may be calibrated with site-specific friction and pore-fluid measurements to constrain dynamically plausible megathrust strength and P f gradients.…”