Fig. 2: Experimental data collected during three fluid injection tests (Tests 1, 2 and 3) within the fault zone.

A–C Fluid pressure (blue), fault-normal (opening in orange) and fault-parallel (slip in red) displacements; (D–F) Injected fluid volume (cyan line and left axis), cumulative number of seismic events (purple line and right axis), and distance (m) of seismic events relative to injection (green dots and right axis). The gray boxes in the panels (A, B, and C) represent the data sequences used for the modeling.