A total of 570 4.0 ≤ Ms ≤ 7.9 earthquakes recorded by the Wujiahe Seismic Station from September 2021 to December 2022 were selected to re-measure the surface wave magnitude and the results were analyzed by comparing with the seismic catalog released by the China Earthquake Networks Center.The relationship between magnitude deviation and magnitude,epicenter distance,and azimuth angle was analyzed,and it was found that the magnitude deviation of earthquakes with a magnitude of Ms 4.0-4.9 was large.60°≤Δ＜105° is the optimal range of the epicenter,and the magnitude deviation is the smallest.In the NW direction,the magnitude deviation is the largest,and in the NE direction,the magnitude deviation is the smallest.
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