安徽省未来中强震活动背景分析
|
摘要
由统计单元(29°~34.5°N,110~123°E)中强震活动性分析,可以看出安徽省中强震的发生呈现出300年大周期的特征,而安徽未来10年处于中强震的300年周期中的弱活动周期内。结合安徽省地震地质构造背景分析,认为安徽省未来中强震活动场所以32°N以南为主,并且重点应关注六安—霍山地区。其次,安徽西北阜阳一带新构造活动特征及历史地震活动特征显示该区存在构造地震空区,未来有发生中强震的地震地质背景。
Anhui province is in moderate-strong earthquake area whose activity level is not high.The moderate-strong earthquake activity period is about 300 years through the analysis of earthquake activity characteristics in statistical unit,and Anhui province next 10 years is in the weak activity stage of 300 years period.The place around south latitude 32 line of Anhui province should be taken an attention based on the analysis of seismological structure background and moderate-strong earthquake activity of Anhui province,especially in the Luan and Huoshan area.Seismic gap is shown to exist in Fuyang and nearby area of Northwest in Anhui province which has the possibility of moderate-strong earthquake occurring by the study about neotectonic movement characteristics and historical earthquake activity behavior,and the area has the background of moderate-strong earthquake.
Anhui province is in moderate-strong earthquake area whose activity level is not high.The moderate-strong earthquake activity period is about 300 years through the analysis of earthquake activity characteristics in statistical unit,and Anhui province next 10 years is in the weak activity stage of 300 years period.The place around south latitude 32 line of Anhui province should be taken an attention based on the analysis of seismological structure background and moderate-strong earthquake activity of Anhui province,especially in the Luan and Huoshan area.Seismic gap is shown to exist in Fuyang and nearby area of Northwest in Anhui province which has the possibility of moderate-strong earthquake occurring by the study about neotectonic movement characteristics and historical earthquake activity behavior,and the area has the background of moderate-strong earthquake.
引文
[1]安徽省地震局.安徽地震目录[M].北京:中国展望出版社,1990.
[2]姚大全,刘加灿,李杰,等.六安—霍山地震危险区地震活动和地震构造[J].地震地质,2003,25(2):211-219.
[3]安徽省地质矿产局.安徽省区域地质志[M].北京:地质出版社,1987.
[4]姚大全,刘加灿,翟洪涛,等.涡阳—凤台地区地震活动和地震构造[J].安徽地质,2003,13(4):270-274.
[5]陆镜元,曹光暄,刘庆忠,等.安徽省地震构造与环境分析[M].合肥:安徽科学技术出版社,1992.
[6]应绍奋.华北大地垂直形变场的演变与地震活动[J].天津地质学会志,1992,10(1):36-42.
[7]张静华,李延兴,郭良迁,等.用GPS测量结果研究华北现今构造形变场[J].大地测量与地球动力学,2004,24(3):40-46.
[8]应绍奋,黄立人,郭良迁,等.由GPS观测得到的中国大陆水平形变[J].地震地质,1999,21(4):459-464.
[2]姚大全,刘加灿,李杰,等.六安—霍山地震危险区地震活动和地震构造[J].地震地质,2003,25(2):211-219.
[3]安徽省地质矿产局.安徽省区域地质志[M].北京:地质出版社,1987.
[4]姚大全,刘加灿,翟洪涛,等.涡阳—凤台地区地震活动和地震构造[J].安徽地质,2003,13(4):270-274.
[5]陆镜元,曹光暄,刘庆忠,等.安徽省地震构造与环境分析[M].合肥:安徽科学技术出版社,1992.
[6]应绍奋.华北大地垂直形变场的演变与地震活动[J].天津地质学会志,1992,10(1):36-42.
[7]张静华,李延兴,郭良迁,等.用GPS测量结果研究华北现今构造形变场[J].大地测量与地球动力学,2004,24(3):40-46.
[8]应绍奋,黄立人,郭良迁,等.由GPS观测得到的中国大陆水平形变[J].地震地质,1999,21(4):459-464.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心