海南岛及邻区地震活动特征研究
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摘要
本文研究范围属东南沿海地震带西南端,历史上曾发生过琼州7.5级大地震,上世纪90年代中期,在北部湾发生过6.1级和6.2级地震。至今,在研究区内,尤其是在北部湾、海南陵水东面海域和东方近海,小震活动仍然频繁。本文在收集研究区内地震目录的基础上,重点揭示了地震活动的空间分布和地震活动的时间序列特征及与其相关的地质构造特点。对未来地震活动的总体趋势给出了初步评价。
The study area is located in the southwestern end of the Southeastern coast seismic belt, in which there occurred a earthquake with MS=7.5 in history in Qiongzhou, and two earthquakes with MS =6.1 and 6.2 in the North Bay in the middle 90’s last century. At present, the seismic activity keeps in a relatively high level. After collecting seismic activity data, the study of spatial and temporal characteristics of earthquakes and related tectonic background was performed to determine the basic trend of seismic activity in near future. The results of this paper are valuable for the anti-earthquake disaster program and seismic safety evaluation work in the area.
The study area is located in the southwestern end of the Southeastern coast seismic belt, in which there occurred a earthquake with MS=7.5 in history in Qiongzhou, and two earthquakes with MS =6.1 and 6.2 in the North Bay in the middle 90’s last century. At present, the seismic activity keeps in a relatively high level. After collecting seismic activity data, the study of spatial and temporal characteristics of earthquakes and related tectonic background was performed to determine the basic trend of seismic activity in near future. The results of this paper are valuable for the anti-earthquake disaster program and seismic safety evaluation work in the area.
引文
1中国地震局地震工程研究中心,2006.海南医学院综合医疗大楼工程场地地震安全性评价报告.
2海口市地震设防中心,2002.海口市地震活动断裂探测成果技术工作报告.
1中国地震局地壳应力研究所等,1999.琼州海峡跨海工程场地地震安全性评价报告.
1国家地震局地震研究所,1996.海口市世纪大桥工程场地地震安全性评价报告.
丁原章,李坪,时振梁,林纪曾,朱振宇,1988.见:海南岛北部地震研究文集.北京:地震出版社.
2海口市地震设防中心,2002.海口市地震活动断裂探测成果技术工作报告.
1中国地震局地壳应力研究所等,1999.琼州海峡跨海工程场地地震安全性评价报告.
1国家地震局地震研究所,1996.海口市世纪大桥工程场地地震安全性评价报告.
丁原章,李坪,时振梁,林纪曾,朱振宇,1988.见:海南岛北部地震研究文集.北京:地震出版社.
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