【摘要】 不同地区地震危险性的产生机制具有相似性，地震危险性可由若干地震活动性指标（要素）加以描述，因此，这些指标特性的相似性反映了地震危险性大小的差异。为此，给出了一种计算相似度的新方法，并用这一方法对若干地区的地震危险性进行了评价，结果令人满意。更多还原

【Abstract】 The mechanisms of seismic risk in different regions have some similarilties. Seismic risk can be described with some indices of seismicity which similarity reflects the difference of seismic risk. A new method calculating the similarity degree is established, based on which seismic risks of a few regions are evaluated. Satisfactory results are obtained.更多还原