Figure 2
The diagram shows a three-dimensional rectangular block tilted slightly toward the right, showing a fault plane surface. The top surface of the block forms a slanted quadrilateral where several geometric parameters and rupture scenarios are illustrated. The lower front edge of the block is labeled “L”, showing the length of the fault plane, and the left vertical edge is labeled “W”, showing the width of the fault plane. Along the left face of the block, the vertical surface is labeled “Fault plane”. On the upper surface of the block, three irregular shaded regions labeled “Scenario 1”, “Scenario 2”, and “Scenario 3” appear at different positions. “Scenario 1” is located toward the lower central area. “Scenario 2” appears near the upper left portion of the surface and has a vertically elongated irregular shape extending downward toward the center. “Scenario 3” appears near the upper right portion of the surface and forms a smaller irregular patch. Near the upper surface edge, two coordinate points are marked: “(x naught, y naught)”, located slightly right of center along the upper edge, and “(x subscript 1, y subscript 1)”, located near the upper right corner. Between these two coordinate points, arrows show dimensions associated with a rupture patch. A horizontal arrow labeled “L of (M)” runs along the scenario 3 showing the rupture length, while a perpendicular arrow labeled “W of (M)” shows the rupture width. The arrow for L of (M) extends roughly along the surface from left to right, while the arrow for W of (M) extends downward across the surface from the upper edge toward the interior.The relationship between fault rupture and surface displacement on the fault surface. Source(s): Author's own work