We have derived a macroseismie formula determining depth of focus because absorption coefficient A/km~2 of near field and geometric diffusibility n of propagation are different with respect to different earthquakes.

• 基于对在近场吸收系数A/km~2和源指标几何扩散率n都因实际地震而异的认识,导出了完整宏观地震震源深度公式,获得确定震源深度考虑吸收的宏观地震方法的通解。