摘要
渤海海域中小地震定量分析结果显示,渤海中存在多个地震密集区.地震密集多呈NE向分布,但也确有NW向活动存在.大致以39°N为界,渤海南部与北部的地震活动差异悬殊,几乎所有的强震和中小地震密集都集中于南部.综合史料和中小地震密集特征,对公元1548年震中位置进行了校订,对1888年地震的震级进行了讨论.探讨了173年地震事件作为一次地震海啸的可能性.对1597年地震事件作为一次渤海强震提出了质疑.
Quantitative analysis on seismicity showed that there are several seimic dense zones in Bohai Sea. These seimic dense zones of modern small earthquakes behave prominent NE orientation, although a seismic dense zone with NW direction exists actually. Taking 39~N as a boundary, seismicity in the south is different from that in north of Bo- hai. Almost all strong earthquakes and seismic dense zones are concentrated in the southern part. Based on archives and seismic dense characteristics, we amended the epicenter of strong earthquakes in 1548 and discussed about magnitude of the earthquake in 1888. Possibility of the event in 173 as a tsunami was discussed. The event in 1597 was doubted as a strong earthquake in Bohai.
出处
《地震学报》
CSCD
北大核心
2007年第5期549-557,共9页
Acta Seismologica Sinica
基金
科技部科研院所社会公益研究专项<中国沿海地区古海啸的定量研究>(2005DIB3J118)
中海石油综合性科研课题<渤海海域地震动区划研究>(ZHKY2005-023)资助.
关键词
地震活动
历史强震
地震密集
海啸
渤海
seismicity
historical earthquakes
seismic density
tsunami
Bouhai Sea
