“…Borehole breakouts, borehole fractures (Brudy et al, 1997;Zoback et al, 2003;Haimson, 2007), microseismic events (Shapiro et al, 1997;Baisch & Harjes, 2003;Bohnhoff et al, 2004;Michelet & Toksöz, 2007) and stimulation pressures (Zoback & Harjes, 1997;Legarth et al, 2003;Legarth et al, 2005) have been evaluated to confine the orientation and amplitude of the principal stress components.…”