Determination of stress regime and horizontal stress direction from fault orientation

Mapping of faults and fractures in the subsurface helps interpret the state of stress that caused such fractures. In some cases the state of stress that caused such faults may be still acting today.

Figure 5.28: Seismic image of the top of an anticline structure (red: shallower, blue: deeper, TOP VIEW). The discontinuities in the seismic image are strike-slip faults. Image from [IPTC-10646-MS].