The SAFOD borehole was drilled approximately 1.8 km west of the
surface trace of the SAF on the Pacific Plate and extends vertically
downward to approximately 1.5 km, then is deviated at an angle of
approximately 55° from vertical and trends northeastward (Fig. 1b).
Herein we report depths along the borehole in meters measured
depth (m MD) to represent the distance below the drill rig floor