震源断层错动在地表产生的破裂和形变的总称，由地震断层、地震鼓包、地震裂缝、地震沟槽等组成。
根据昆仑山口西地震测线断层围陷波的观测结果，可推断该处破裂面宽度为300 m左右，远远大于地表破裂带的宽度。
Based on the fault zone trapped waves observed in Kunlun Mountain Pass region, the width of the rupture plane is deduced to be about 300 m and is greater than that on the surface.
地震的地表破裂中心在南冲、陆良山一带。
The center of surface rupture to the earthquake is located around Nanchong and Luliangshan.
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