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本文利用腾冲火山活动区及周围地区的地方震尾波资料，根据尾波散射理论，研究了火山地区及周围地区的地壳Ｑ值。结果表明，火山地区的地壳Ｑ值最低，为９５，近邻区的龙陵———保山地区在１７０～１５０之间，周围地区最高达２９５左右，是火山地区的１８～３０倍左右。地壳Ｑ值的空间分布明显表现出腾冲火山活动区为低Ｑ值区，而周围地区为高Ｑ值地区，这种地壳Ｑ值的空间分布差异也许反映了火山地区内部介质状态与周围地区构造地震内部介质状态的物理性质的差异。火山活动区地壳低Ｑ值现象可能与岩浆体的高温热物质状态有关，显示了与火山结构有关的构造特征。
Based on the coseismic wave data of the Tengchong volcanic activity area and the surrounding area, the paper studies the Q value of the crust in the volcanic area and the surrounding area according to the cataract scattering theory. The results show that the volcanic area has the lowest crustal Q value of 95, the adjacent area of Longling --- Baoshan area is between 170 and 150, the surrounding area is up to about 295, which is 1.8 to 3.0 times of the volcanic area about. The spatial distribution of Q value in the crust obviously shows that the active area of Tengchong volcano is a low Q value area and the surrounding area is a high Q value area. The spatial distribution difference of Q value of this crust may reflect the relationship between the internal media state in the volcanic area and tectonic earthquakes in the surrounding area Differences in the physical properties of internal media states. The low Q value of the crust in the volcanic activity area may be related to the state of the high temperature thermal material in the magma, showing the tectonic features related to the volcanic structure.