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以构造块体成组孕震模型为基础，讨论了孕震系统在局部孕震体强度发生变化时整个系统中的地震活动性变化特征。分析了岩石介质强度在其正常背景下发生弱化和强化后，孕震系统中各地震带上地震活动的时、空、强分布特征。结果表明，在外界影响（即边界动力作用）不变的情况下，不论是系统局部发生弱化还是强化，强度变化不仅影响到发生变化的地区中的地震活动性，而且对与其相连的地区及系统内其它没有发生变化的地震带上的地震活动都有强烈的影响
Based on the group seismogenic model of the block, the variation of seismic activity in the whole system of the seismogenic system is discussed when the local seismogenic body intensity changes. After the weakening and strengthening of the rock medium strength in the normal background, the distribution of seismic activity on the seismic belts in the seismogenic system is analyzed. The results show that under the condition of constant external influence (ie, the dynamic effect of the boundary), whether the system weakens or strengthens locally, the intensity change not only affects the seismic activity in the changed area but also affects the connected area and system The seismic activity on other unconverted seismic zones has a strong influence