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The 1975 Haicheng MS7.3 earthquake affected whole Korean Peninsula and even Kyushu,Japan.In this paperisoseismal map of this earthquake was drawn for these areas by sorting out and analyzing data systematically col-lected,furthermore,the characteristics of the earthquake damage were discussed.In the northern Korean Peninsula,the intensity is V in great majority of this area except local area with intensity VI,and the damage is basically inaccordance with typical characteristics of corresponding intensity grade.In the southern Korean Peninsula,theintensity is IV in large part of the area,however,in some big cities such as Seoul etc.,not only high buildingsshook strongly,but also some people appeared perceptions such as feeling dizzy and so on,and electrical servicewas interrupted on one or two districts because of transformer tripping.These phenomena could be caused by theeffect of long-period wave generated from a large earthquake on far-field.
The 1975 Haicheng MS7.3 earthquake affected whole Korean Peninsula and even Kyushu, Japan. In this paper is map of this earthquake was drawn for these areas by sorting out and analyzing data systematically col-lected, furthermore, the characteristics of the earthquake damage were discussed .In the northern Korean Peninsula, the intensity is V in great majority of this area except local area with intensity VI, and the damage is basically inaccordance with typical characteristics of corresponding intensity grade. In the southern Korean Peninsula, theintensity is IV in large part of the area, however, in some big cities such as Seoul etc., not only high buildingsshook strongly, but also some people These phenomena could be caused by theeffect of long-period wave generated from a large earthquake on far-field.