摘要
利用20世纪华北地区37次中强地震事件的89条等震线数据,拟合了该地区地震烈度衰减关系。主要选取了M≥5.0的地震事件。与以往的地震烈度衰减关系相比,在计算中强地震烈度时,精度上得到了相应地提高。充分反映了华北地区地震烈度衰减较慢的特点。
Seismic intensity attenuation for north china is fitted by using 89 isoseismal lines from 37 earthquakes in this region.The earthquakes are mainly selected by M(M≥5.0).Compared with the past model,the accuracy is improved by using the data of moderately strong earthquakes.The model shows that north china has a low seismic intensity attenuation.
出处
《华北地震科学》
2010年第2期18-21,共4页
North China Earthquake Sciences
关键词
华北
地震烈度
等震线
衰减关系
North China
seismic intensity
isoseismal lines
seismic intensity attenuation