发震断层（seismogenic fault）是指发生地震的断层。发震断层对某次特定地震的孕育（能量积累）和发生（能量释放）起控制作用，其震源错动或同震地表错动是沿某一先存活动断层的部分段落或全部段落发生的。
The analytical results of the aftershock focal mechanism show that the seismogenic fault dip angle is slowing down with depth,and is gradually steepening from southwest to northeast,which could be used to explain the increases of strike-slip component.
余震震源机制分析结果表明,发震断层的倾角随深度的增加而变缓,且从西南向北东逐渐变陡可以用来解释走滑分量增加的成因。
参考来源 - 汶川M·2,447,543篇论文数据，部分数据来源于NoteExpress
发震断层均为各活动地块内的主要活动断层。
The most of earthquakes occurred at main active faults in each active block.
结合该地区的地震分布，对可能的发震断层进行了讨论。
Combined with the distribution of the earthquakes in this area, the possible generating fault was discussed.
对发震断层有促滑作用的潮汐应力作用方式分增压型和减压型。
The patterns of tidal stress effect of slip acceleration are classified into compression-adding type and compression-reducing type.
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