Barrier 05
Barrier 05 : A site on a fault surface of higher strength than the surroundings that is capable of terminating rupture or across which rupture may jump. In seismology, this term (and also the term asperity) is often used to describe heterogeneity of a fault, and was first introduced by Das and Aki (1977) to construct a two-dimensional fault model. See Scholz (2002)