郭秋娜,周月玲,温超. 河北省地震灾害分布特征[J]. 华北地震科学,2021, 39(3):77-82. doi:10.3969/j.issn.1003−1375.2021.03.012.
引用本文: 郭秋娜,周月玲,温超. 河北省地震灾害分布特征[J]. 华北地震科学,2021, 39(3):77-82. doi:10.3969/j.issn.1003−1375.2021.03.012.
GUO Qiuna,ZHOU Yueling,WEN Chao. Distribution Feature of Seismic Hazard in Hebei Province[J]. North China Earthquake Sciences,2021, 39(3):77-82. doi:10.3969/j.issn.1003−1375.2021.03.012.
Citation: GUO Qiuna,ZHOU Yueling,WEN Chao. Distribution Feature of Seismic Hazard in Hebei Province[J]. North China Earthquake Sciences,2021, 39(3):77-82. doi:10.3969/j.issn.1003−1375.2021.03.012.

河北省地震灾害分布特征

Distribution Feature of Seismic Hazard in Hebei Province

  • 摘要: 基于ArcGIS软件对河北省地震灾害分布特征进行分析,以期为河北省地震灾害评估、应急救援工作提供科学依据。研究表明:河北省内历史上发生破坏性地震(MS 4\dfrac34)193次,地震灾害在空间上遍布河北省11个地市(除承德市),主要集中在唐山、张家口、邢台3个地区,占河北省内地震灾害的58.09%;从统计结果来看,河北省各市区地震分布具有明显的差异性,同时具有丛集性的特点,地震地质灾害主要分布在河北唐山冲积平原和滨海平原区、邢台和邯郸的山前冲积平原烈度为Ⅶ度及以上地区,喷砂冒水与地裂缝具有共生现象,以河流两侧地区最为发育;从地震烈度角度分析,河北省所受的最大地震影响烈度为Ⅺ,全省168个县区有165个遭受过Ⅵ以上破坏,约占98%。

     

    Abstract: The paper analyzes the distribution feature of seismic hazard in Hebei Province based on ArcGIS software to provide a scientific basis for seismic hazard assessment and emergency rescue work. The results show that: There has occurred 193 violent earthquakes (MS 4\frac34) in the history of Hebei Province, and the seismic hazard in space throughout 11 cities in Hebei province (except Chengde City), mainly concentrated in Tangshan, Zhangjiakou and Xingtai three regions, accounting for 58.09% of the earthquake disasters in Hebei Province. From the results of spatial statistics, the distribution of earthquake in each urban area of Hebei Province has obvious differences and cluster characteristics. The seismogeological disasters are mainly distributed in Tangshan alluvial plain and coastal plain areas, Piedmont alluvial plain areas of Xingtai and Handan, where intensity VII and above. Sand blasting and ground fissure have symbiosis, and the areas on both sides of the river are the most developed. From the perspective of seismic intensity, the largest seismic impact intensity suffered by Hebei Province is Ⅺ, and 165 out of 168 counties in the province have suffered damage above Ⅵ, accounting for about 98%.

     

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