简介：UsingthefocalmechanismsolutionsandslipdistributionmodeldataoftheTaiwanStraitsMS7.3earthquakeonSeptember16,1994,wecalculatethestaticCoulombstresschangesstemmingfromtheearthquake.Basedonthedistributionofaftershocksandstressfield,aswellasthelocationofhistoricalearthquakes,weanalyzetheCoulombstresschangetriggeredbytheTaiwanStraitsMS7.3earthquake.TheresultshowsthatthestaticCoulombstresschangeobtainedbyforwardmodelingbasedontheslipdistributionmodelisquiteconsistentwiththelocationofaftershocksintheareasfarawayfromtheepicenter.Ninetypercentofaftershocksoccurredinthestressincreasedareas.TheCoulombstresschangeisnotentirelyconsistentwiththedistributionofaftershocksneartheepicenter.ItisfoundthatCoulombstresschangecanbetterreflecttheaftershockdistributionfarawayfromtheepicenter,whilesuchcorrespondingrelationshipbecomesquitecomplexneartheepicenter.ThroughthecalculationoftheCoulombstresschange,wefindthatthestressincreasesinthesouthwestpartoftheMin-Yue(Fujian-Guangdong)coastalfaultzone,whichenhancestheseismicactivity.Therefore,itisdeemedthattheseaareabetweenNanpengIslandandDongshanIsland,wheretheMin-YuecoastalfaultzoneintersectswiththeNW-trendingShanghang-Dongshanfault,hasahighseismicrisk.