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对冬瓜营古地震剖面研究的结果表明:阳宗海附近西支小江活断层上,近两千五百年以来至少发生过五次七级以上强震,它们的碳14年代分别为距今118±95年(b.p.)距今445±95年(b.p.);距今1347±213年(b.p.);距今1930±135年(b.p.);>距今2359±213年(b.p.)。其中,剖面记录的最晚两次古地震事件与历史记载的嵩明、宜良间1833年八级大地震和宜良1500年七级强震还能够相对应,说明该剖面记录的古地震事件可信度较高,具有一定的参考使用价值。
The results of the study on the paleoseismic section of the Dongguai camp show that at least five strong earthquakes of magnitude 7 or above have occurred in the active fault of the Xiaozi of the West Branch of Yangzonghai since the last 2500 years and their carbon ages are 118 ± 95 years (bp) 445 ± 95 years (bp); 1347 ± 213 years (bp); 1930 ± 135 years (bp);> 2359 ± 213 years (bp). Among them, the latest two episodes of seismic events recorded in the profile can also correspond with the historical records of Songming, Yiliang, the Great Earthquake of 1833 and the Strong Earthquake of Yiliang in 1500, indicating that the paleoearthquakes recorded in the profile are credible Higher degree, with a certain reference value.