Figure 4 : Schematic illustration of rupture directivity for a typical dip-slip earthquake (45° dip).

From: Widespread ground motion distribution caused by rupture directivity during the 2015 Gorkha, Nepal earthquake

Figure 4

Configuration is shown in upper right diagram. The upper and lower left diagrams show ground motion patterns of point and finite source models (grey zones), respectively. Thick arrows in black and white indicate directions of slip and rupture, respectively. The red star is the rupture initiation point, and the sky blue triangle denotes a station. The lower right diagram shows the north–south component of ground motion at the station, which vanishes because of the nodal plane.