Surface Displacements Due to Underground Faults
Surface Displacements Due to Underground Faults
This Demonstration shows the displacements (in millimeters) on the surface of a homogeneous half-space due to various elemental dislocations (in meters) at given depths (also in meters) within the half-space, which is equivalent to geologic fault motion. The dip (degrees) of the fault plane is measured from the horizontal, and the depth is measured perpendicularly from the surface. You can specify one of the three components of motion (, , or ) and the fault type. A tensile fault has dislocation normal to the fault plane; a strike-slip fault has dislocation along the fault plane in the horizontal direction (); a normal fault has dislocation along the fault plane in the vertical () direction.
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