Fig. 3

Pore pressure measurements from the geothermal wells of Szentes after Bálint and Szanyi (2015), Szanyi et al. (2016) and the dataset of the Geo-Log Ltd. Measurements are plotted from ~ 1800 m depth. Different colors correspond to individual wells. Multiple observations from the same well are connected with a dotted line, however, these lines do not represent the pressure history. Pressure data from the well where the largest measured pressure decline occurred are represented with the yellow circles and solid lines