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本文从分析天水地区区域地质构造背景出发着重指出,1654年罗家堡7(1/2)级地震发生在天礼盆地中北东向构造与北北西向活动构造交汇所形成的新生代以来沉陷最深的部位。并对1936年天水镇6级地震发生的构造条件以及天礼盆地的成因进行了初步探讨。
Based on the analysis of the regional geological tectonics in Tianshui area, this paper pointed out emphatically that the Luojiapu 7 (1/2) earthquake in 1654 occurred in the subsidence area formed during the Cenozoic formed by the intersection of the NE-trending and NE-W activities in the Tianli Basin The deepest part. The tectonic conditions of the 6th Tianshui earthquake in 1936 and the genesis of Tianli Basin were discussed.