满洲里－绥芬河地学断面域地震学研究表明：沿断面可划分额尔古纳－大兴安岭、松辽盆地－张广才岭和佳木斯－兴凯三个波速块体；纵向上地壳分为三层，地壳厚度２９～３８ｋｍ；Ｐ波平均速度６．２５～６．４０ｋｍ／ｓ；松辽盆地沉积盖层较厚，基底面下方附近低角度断层发育；Ｍｏｈｏ面厚度１．５～５．０ｋｍ，内部结构复杂；上地幔低速层埋深差异较大，松嫩块体埋深最浅；深源地震频度高、强度大、震源深，浅源地震相对较少和较弱，震源多位于地壳中上部；地壳构造应力场主压应力优势方向为北东—南西。 Seismological study of Manchurian-Suifenhe geosciences shows that the three velocity blocks of Ergun-Daxinganling, Songliao Basin-Zhangguangcailing and Jiamusi-Xingkai can be divided along the section; the crust is divided into three layers in vertical direction, the crust thickness is 29 ~ 38km; average P-wave velocity is 6.25 ~ 6.40km / s; the sedimentary cover is thick in the Songliao basin, with low-angle faults developed below the basement surface; Moho surface is 1.5-5.0km thick with complicated internal structure; The depth of the low-velocity layer in the upper mantle is quite different and the depth of the Songnen block is the deepest. The deep-seated seismic frequency is high and intensity is high. The deep and shallow earthquakes have relatively little and weaker earthquakes. The dominant stress direction of tectonic stress field is North East-South West.