On the Large Scale Spatial Heterogeneity of Great Shallow Earthquakes and Plate Coupling Mechanism in Chinese Mainland and Its Adjacent Areas

(整期优先)网络出版时间:1997-03-13
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ResearchonthelargescalespatialheterogeneityofgreatintraplateshallowearthquakesontheChinesemainlandandadjacentareasdiscussedinthispapershowsthat(1)therearefourmainhighseismicityareas:theNorthChinaseismicareaintheeasternpartofChina(30°-42°N),theSoutheasternCoastseismicareaintheeasternpartofChina(19°-25°N),theNorth-SouthseismicareainthewesternpartofChinaanditsadjacentareas(Burma-China-Mongolia),andtheCentralAsianseismicareainthewesternpartofChinaanditsadjacentareas(Pamir-TianshanMountains-Baikal);(2)thefourintraplateseismicareasthatareapproximatelyperpendiculartothosesectionsoftheEurasiaplateboundarythatsurroundstheChinesemainlandanditsadjacentareas,wheretheEurasiaplatehasastrongseismiccouplingwiththeNorthAmerica-PacificOcean-PhilippineSeaplateandtheIndiaplate;and(3)thelargescalespatialheterogeneityofintraplateseismicityinChinaanditsadjacentareasthatmightbecontrol