Comparison of timescales between formation of extension quartz veins along megaspray fault and recurrence interval of earthquakes in subduction zones: a case study of Nobeoka Thrust, SW Japan

Abstract

Quartz dissolution-precipitation could control spatial and temporal change of permeability in the Earth’s crust. However, the relationship between the Water-Rock Interaction and the seismic cycle is still unclear. In this study, our “CRACK model” reveal that the timescales of the formation of a quartz vein and the recovery of permeability correlate to the extensional stress period and the recurrence interval of mega-earthquakes in the Nankai Trough, respectively.