A seismic reflection profile crossing the San Andreas fault zone in central California was conducted in 1978. Results are complicated by the extreme lateral heterogeneity and low velocities in the fault zone.

• 1978年；在美国中加利福尼亚完成了一条横跨圣安德烈斯断层带的地震反射波剖面.；由于断层带存在着强烈的侧向非均匀性和低速结构；观测结果极为复杂