【摘要】 张北 6 .2级地震现场调查结果表明 ,这次地震形成了大量的非构造地裂缝 ,它们主要分布在极震区和 度区。地裂缝的优势方位为 NNE和 NWW向 ,与 度等震线双向展布基本一致。利用地裂缝的空间分布特征和统计的优势方位 ,探讨了地裂缝与烈度分区和发震构造的关系。更多还原

【Abstract】 The investigation on the site of Zhangbei earthquake shows that this event formed a lot of ground fissures,which distribute mainly in the zone of Ⅷ intensity and Ⅶ intensity.The preponderant directions of the fissures are NNE and NWW,which is consistent with the two-direction distribution of isoseisms.Based on the spatial distribution feature of the fissures and the statistical preponderant directions,the relation of ground fissure with intensity zoning and seismic structure is discussed.更多还原