(a)-(c) InSAR time-series at piezometric wells located outside the subsidence area (w6, w7 and w9), along the margin of the subsidence area (w5, w8, w17 and w33) and in the middle of the subsidence area (w14, w16, w31 and w32), respectively; (d)-(f) Water table fluctuations of piezometric wells located outside the subsidence area (w6, w7 and w9), along the margin of the subsidence area (w5, w8, w17 and w33) and in the middle of the subsidence area (w14, w16, w31 and w32), respectively.