CAJ | 학술논문

充分利用震害评估和宏观考察的资料，采用震害程度和震害指数2个标准共同确定了1998年张北6.2级地震的宏观烈度。极震区烈度为Ⅷ度，呈NWW和NNE双向分布，以NWW为主，面积135km2。Ⅶ度区呈NE、NW双向伸展图象，但是SE方向伸展不足，面积约340km2。地震重伤人员普遍集中在Ⅷ度区和Ⅶ度区。Ⅵ度区亦呈NE、NW双向伸展图象，但是NW、SW方向延伸长，Ⅵ度区面积约1000km2。宏观震中：北纬41°09′，东经114°27′。在极震区的NNE、SSW和NWW方向，存在3个烈度异常区，它们分别在极震区3个分支的延伸方向上。文中讨论了烈度不高而震后较重的原因。震区没有发现地表破裂带，也没有发现第四纪强烈活动的大型断裂。极震区为主的NWW方向和震前存在的小地震条带吻合，暗示可能存在成因上的联系。
충분이용진해평고화굉관고찰적자료，채용진해정도화진해지수2개표준공동학정료1998년장북6.2급지진적굉관열도。겁진구열도위Ⅷ도，정NWW화NNE쌍향분포，이NWW위주，면적135km2。Ⅶ도구정NE、NW쌍향신전도상，단시SE방향신전불족，면적약340km2。지진중상인원보편집중재Ⅷ도구화Ⅶ도구。Ⅵ도구역정NE、NW쌍향신전도상，단시NW、SW방향연신장，Ⅵ도구면적약1000km2。굉관진중：북위41°09′，동경114°27′。재겁진구적NNE、SSW화NWW방향，존재3개열도이상구，타문분별재겁진구3개분지적연신방향상。문중토론료열도불고이진후교중적원인。진구몰유발현지표파렬대，야몰유발현제사기강렬활동적대형단렬。겁진구위주적NWW방향화진전존재적소지진조대문합，암시가능존재성인상적련계。
Based on earthquake damage assessment and macro-observation,the macrointensity of Zhangbei Ms6.2 earthquake is determined with the 2 criterion of damage degree and index.The intensity of meizoseismal region is Ⅷ degree.The distribution is along NWW and NNE two directions,but mostly in NWW direction.The area of the meizoseismal region is about 135km2.The Ⅶdegree region stretches NE and NW two directions with an area of 340km2,but the SE direction doesn't stretch enough.The wounded people concentrated mostly in Ⅷ and Ⅶ degree rgeion.The Ⅵ degree region stretches along NE and NW direction with an area of 1000km2,but the NW and SW direction stretches larger.The macroseismic epicenter is about 41°09′N，114°27′E.There are three anomalous intensity areas,which located in the three offsets that the meizoseismal region stretches.The reason that intensity isn't high but damage is serious is discussed here.Neither surface fault nor great active fault of alluvium period is found in the quake region.The main direction of NWW for meizoseismal region is consistent with a small earthquake belt appeared before the event,which hints some causes relations.