Fig. 11From: Identification of hydrogeological evolution using hydrogeology-seismology analysis of groundwater head fluctuation related to the 1999 MW = 7.5 Chi-Chi earthquakeDetected hot zones of obvious vertical permeability increase across multiple aquitards during a t = 1 and t = 27 h and b t = 28 and t = 55 across (-1) aquitard 1, (-2) aquitard 2, and (-3) aquitard 3Back to article page