在地震预测第一线的实践中，发现一个具有显示地体构造运动和地震短临前兆意义的小震组合。
It is discovered that a combination pattern of small earthquakes manifest the significance of massif tectonic movement and short-term and imminent earthquake precursor.
该相沉积厚度相对较大，在地震剖面上反映为丘状隆起，内部反射杂乱，呈乱岗状反射，多沿主要构造线延伸。
The facies has large depositional thickness, showing colina shape, desultory interior reflections and extension along major structural alignment on seismic section.
文中对地面运动衰减规律中的距离参数提出了一种新的定义，即从场地到破裂线两端点的平均距离。这个定义能较好地反映发生构造地震的断层破裂模式。
A new definition of distance parameter in attenuation law of ground motion, i. e. the average distance from site to both ends of rupture line is proposed.
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