Fig. 1From: Effective unwrapping of complicated phases by exploiting multiple interferograms: a case study of the 2016 Kumamoto earthquakea Optical image in the northwest of the outer rim of the Aso caldera. The red lines denote known active faults (Nakata and Imaizumi 2002). b Topography. The red lines denote the displacement lineaments identified by Fujiwara et al. (2016, 2020)Back to article page