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1933年叠溪75级地震是发生在青藏高原东南缘的重大事件。对这次地震的等烈度线形态及与之相关的发震构造的认识有着明显的分歧。本文基于野外新发现的南北向活动断裂以及叠溪地震地面破裂的研究,认为这次地震的发震构造可能是作为岷江断裂南延部分的南北向活动断裂
The 1933 Diexi 75 earthquake occurred on the southeastern margin of the Qinghai-Tibet Plateau. There is a clear disagreement on the isosurgery line shape of the earthquake and its related seismogenic structures. Based on the newly discovered active north-south trending active faults in the field and ground-breaking of Diexi earthquake, it is considered that the seismogenic structure of this earthquake may be the north-south active fault of the southern extension of the Minjiang fault