Figure 5 : Schematic illustration of rupture directivity for a low-angle dip-slip earthquake (10° dip).

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

Figure 5

Configuration is shown in upper right diagram. The upper and lower left diagrams show ground motion patterns of point and finite source models, 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. In the lower right diagram, the thick curve represents constructive interference of north–south ground motions from fault segments (thin curves), illustrating the mechanism of rupture directivity pulse from a low-angle dip-slip finite source.