Production-Induced Subsidence at the Los Humeros Geothermal Field Inferred from PS-InSAR

Figure 6

Mean (a) and interpolated (b) PS velocities in the LOS direction at the LHGF. Negative LOS velocities indicate movement away from the satellite (~subsidence) and positive values indicate movement towards the satellite (~uplift). The main structures after Norini et al. [11] and Carrasco-Núñez et al. [12] and the wells operating during the period of the InSAR are shown in both figures. The black dashed rectangle marks the outline of the area selected for modeling. The epicenters of induced earthquakes between December 1997 and October 2008 after Urban and Lermo [18] are plotted in (b). The time series of the mean LOS velocities from the area where the largest subsidence is observed (highlighted in (a) with dotted circle) is shown in (c).

(a)

(b)

(c)