“…Thermal shear runaway in the focal region can generate highly localized ductile deformation and slip instabilities (Kanamori et al, 1998;Prieto et al, 2012). Recently, local and global seismological studies have shown that most of IDEs have a low radiation efficiency, suggesting that thermal shear runaway is the leading source mechanism of IDEs (Díaz-Mojica et al, 2014;Nishitsuji & Mori, 2013;Prieto et al, 2013Prieto et al, , 2017. Recently, local and global seismological studies have shown that most of IDEs have a low radiation efficiency, suggesting that thermal shear runaway is the leading source mechanism of IDEs (Díaz-Mojica et al, 2014;Nishitsuji & Mori, 2013;Prieto et al, 2013Prieto et al, , 2017.…”