Abstract: The observational data from the seismic station network of Liaoning province were processed by using a new method of seismic velocity imaging and computer program. It gives new results of the three-dimensional crustal structure of the Haicheng seismic area and neighboring regions. The analyses confirm again that the crustal structure on the borth sides of the Haicheng seismic area is rather different. The focuses of Haicheng earthquakes are located above a NWW trending low velocity body in the crust.

Key words: Seismic imaging, Crustal structure, Haicheng earthquake

摘要： 用一种新的地震波速图象研究方法和计算程序,处理了辽宁省地震台网观测资料,反演得到海城地震地区及其周围地壳三维速度结构,再次证实海城震区东西两侧的地壳结构有明显差异,海城地震的震源位于一个北西走向的低速体上方。

关键词: 地震成象, 地壳结构, 海城地震