通过实测断错地貌面，开挖大探槽以及系统的地层年代采样，推断和揭露出矾山盆地北缘断层八营段９万年来总位移量为３４ｍ。约７５万年来共发生过９次古位移事件。其中大探槽揭露的４次事件分别发生在距今：Ａ，２．８万年；Ｂ，１４万年；Ｃ，０７５万年和Ｄ，６５６年（？）左右。该段落古地震的重复模型分为两个阶段：９～１４万年间符合“时间可推测模型”；１４万年以来则为“位移衰减模型”。 By measuring the geomorphic surface, excavating the large trenches and sampling the strata of the system, the total displacement of the Baying battlement in the northern margin of the Fanshan Basin was estimated to be 34m over the 90,000 years. A total of 9 ancient displacements occurred in about 75,000 years. Among them, the four incidents revealed by the major trenches occurred respectively in A, 2.8 million years, B, 14,000 years, C, 075,000 years and D, 656 years. The repeated model of the Paleoearthquake is divided into two stages: 9 ~ 14,000 years in line with “time can be speculated model”; 1  40 000 years since the “displacement attenuation model.”