The isoseismal maps are valuable complements to the instrumental records . 等震线图是仪器记录有价值的补充资料。
2.
In this paper isoseismal map of this earthquake was drawn for these areas by sorting out and analyzing data systematically collected , furthermore , the characteristics of the earthquake damage were discussed 本文系统收集了该震有关资料，并通过整理分析勾画出其烈度分布，以探讨该震的震害特点。
3.
The research on attenuation features of intensity in the yunnan region by using intensity isoseismals of 127 earthquakes , and the following three conclusions have been put forward : ( 1 ) average ratio values of long - axis to short - axis of innermost isoseismal in the yunnan region is larger than eastern china and smaller than western china 摘要本文利用127次地震等震线资料，对云南地区地震烈度衰减特徵进行了研究，其结果表明： ( 1 )云南地区地震烈度极震区等震线的长轴、短轴之比的均值，高于我国东部地区而略低于西部地区的平均值，烈度衰减方向性强。
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