简介:ThecontrollingandinfluencingeffectsofthejointactionofplatessurroundingChinaonstrongearthquakesinChinesemainlandarediscussed,andthecharacteristicsofseismicactivitiesintheWestofChinaandneighboringregionsarefurtherstudied.TheresultsshowthattheseismicactivityintheWestofChinaandneighboringregionsnotonlyhasthecharacteristicsofhightideandlowtidealternationbutalsohasthecharacteristicsofrisinginoneregionwhilefallinginanother,andtheriseandfailofseismicityareinsomeproportion.TheabovecharacteristicsareusefulforthepredictionofmainbodyregionofstrongearthquakesinChinesemainland,especiallyforthejudgementoftheendingtimeofthehighfideperiod.