这一地带的大、小地震绝大部分是浅源地震，只在弧形山系和东西弧顶及其转折部位有中源地震。
Only in the arcuate mountain system and at the vertices of the east and west area as well as at the turning points of the range that earthquakes of medium depths occurred.
当一个板块被迫深人另一个板块下面的地幔中时，强烈的深源地震一般会发生在俯冲带的下部。
Deep seated earthquakes, often severe in magnitude, generally occur beneath subduction zones, as one plate is forced deep into the mantle beneath another.
全球发生较大的深源及中深源地震7次。
Altogether there were 7 deep focus and intermediate focus earthquakes occurring over the globe.
本文提出用于地下成像无源地震方法的分析，在该方法中应用环境地震噪声作为地下散射体的照明源。
An analysis of a passive seismic method for subsurface imaging is presented in which ambient seismic noise is employed as the source of illumination of subsurface scatterers.
本文提出用于地下成像无源地震方法的分析，在该方法中应用环境地震噪声作为地下散射体的照明源。
An analysis of a passive seismic method for subsurface imaging is presented in which ambient seismic noise is employed as the source of illumination of subsurface scatterers.
应用推荐