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 isoseisma
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 isoseisma
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。