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基于近震震级公式,得出景洪电站水库诱发地震监测台网理论监测能力在坝区为ML 0.5,在坝区周边,理论监测能力为ML 0.7。基于GR震级频度关系及Wiemer & Wyss最小完整性震级估计方法求取景洪电站水库诱发地震监测台网实际监测能力,结果证明,其实际监测能力能够满足理论监测能力的要求。在0.5的理论监测区范围内,最小完整性震级为ML 0.0,而在0.7的理论监测范围内,最小完整性震级为ML 0.4。
Based on the local magnitude formula, the theoretical monitoring capabilities, in and around Jinghong Hydropower Reservoir, of seismic network are ML 0.5 and ML 0.7, respectively. To test the theoretical monitoring capability of seismic network of Jinghong Hydropower Reservoir, we calculate the practical monitoring capability of seismic network of Jinghong Hydropower Reservoir. The results show that the practical monitoring capability is consistent with the theoretical monitoring capability. In the ML 0.5 region and ML 0.7 of theoretical monitoring capability of seismic network, the minimum magnitudes of completeness are ML 0.0 and ML 0.4 respectively.