摘要
Slip rates along the buried faults in Beijing plain area were investigated. Using cross-correlation analysis of available waveforms, the authors identified a total of 35 doublets and 20 multiplets that show high waveform similarity. Most of these sequences are aperiodic with recurrence intervals varying from a few minutes to hundreds of days. Given the limited quantity and quality of seismic data in the area, the authors have chosen a more robust approach to constrain repeated event locations. Based on four repeating sequences, the authors obtained the slip rate about 1.0 ~ 1.2 mm/a at seismogenic depths of Hangzhuang-Gaoliying Fault and Nankou-Sunhe Fault,and the slip rate of 1.5 mm/a at 9.4 km of the south boundary fault of Huai’ an Basin, which is consistent with geological and geodetic measurements.