In addition,the result of residual analysis shows that a relation of magnitude-frequency can not be a simple logarithm straight relationship, it is necessary for adding higher order items to the Gutenberg-Richter magnitude-frequency relation.

• 此外，稳健估计结果的余差分析同样也得到地震震级－频度关系不是简单的对数线性关系的结果，而原始G－R公式需加二次以上的高次项才能较好地描述该特性。