【摘要】 对发生在中国大陆地区的8次地震,用不同的区域半径分别进行应变能释放的幂率拟合和加卸载响应比计算,发现最佳幂率拟合的区域半径与加卸载响应比最大值所对应的区域半径的对数与地震的震级呈线性关系,且两者具有很好的一致性,因而认为两者之间可能具有相同的物理机制,是孕震系统进入临界状态的不同表现形式。更多还原

【Abstract】 Both LURR- (Load-Unload Response Ratio) anomalies and best-fit power-law function of ARSE (accelerating release of strain energy) are computed using data for a range of distances from the epicenters of 8 earthquakes occurred in the mainland of China. The result shows that there is a linear relation between the logarithm of either the critical region radius (R) for ARSE or the region radius (R) for optimal LURR and the magnitude of the events. A strong correlation is evident between the ARSE and LURR critical region size suggesting that these two observations have a common physical mechanism. It means that the seismogenic system closes to critical status.更多还原