关键词: 发震断层, 唐山地震, 第四纪凹陷, 次生构造破裂

Abstract: The opinions of two papers from this publication are discussed in the paper. One is that the Tangshan Fault is a high-angle, west-dip and thrust with strike-slip fault. The other is that the Fuzhuang-Xihe Fault distributed at the east side of Tangshan city is the seismogenic fault of Tangshan earthquake. For the former opinion, it needs to explain the relationship between the active style of the thrust Tangshan Fault and the formation genesis of a Quaternary depression along the west side of Tangshan city. For the latter opinion, if the Fuzhuang-Xihe Fault is the seismogenic fault of the Tangshan earthquake, it needs to explain the genesis relationship between this surface rupture zone with west-dip and the surface rupture that extents through the Tangshan city with strike-slip. And it needs more evidence to get rid of the possibility, that is, the surface rupture belongs to secondary structure rupture. The paper suggests doing more work on the active fault that controls the Caobo Quaternary depression.

Key words: seismogenic fault, the Tangshan earthquake, Quaternary depression, secondary structure rupture