The directivity shows that the Nodal plane I is the fault plane, and that the earthquake ruptured unilaterally from the northeast to the southwest, nearly perpendicular to the strike of the Java trench.

• P波的这种多普勒效应表明；走向199°的节面为断层面.；地震是从东北向西南方向单侧破裂的；破裂传播方向几乎垂直于爪哇海沟走向