【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。更多还原

【Abstract】 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.更多还原