1985年4月18日13点52分在云南省禄劝-寻甸交界地区发生一次震级 M_s=6.3级的强烈地震。作者根据现场调查和有关文献资料,进行了发震构造的地质分析。本发震区 On April 18, 1985, at 13:52, a strong earthquake of magnitude M_s = 6.3 occurred at the junction of Luquan and Xundian in Yunnan Province. According to the site survey and related literature, the author conducted a geological analysis of the seismogenic structure. The earthquake area