Skip to main content
Progress in Earth and Planetary Science
Fig. 1 | Progress in Earth and Planetary Science

Fig. 1

From: Progress in modeling the Tohoku-oki megathrust earthquake cycle and associated crustal deformation processes

Fig. 1

Megathrust earthquake cycles simulated with the frictional properties of the JFAST shallow-fault zone materials and TP (Noda et al. 2017). a TP schematic diagram (Noda and Lapusta 2010). During an earthquake rupture, the frictional shear heating on the fault raises the temperatures and the pore pressure. b Slip velocity dependence of the frictional properties of the fault-zone materials collected by the JFAST. The dynamic weakening caused by TP is assumed to occur near the trench. c Distribution of the cumulative slip. The pink lines show the slip distribution at 10 s intervals during an earthquake. The green lines show the slip distribution immediately before and after the earthquake. The blue lines show the slip distribution at 50-year intervals. Megathrust earthquakes occur at intervals of about 550 years, whereas large earthquakes occur at intervals of about 50 years. b and c are after Noda et al. (2017)

Back to article page