Method for rapidly eliminating seismic first arrival abnormal value

The invention discloses a method for rapidly eliminating a seismic first arrival abnormal value. The method includes: A, inputting an original first arrival data; B, drawing an effective first arrivalcentral tendency curve to obtain first arrival data; C, classifying and sorting the first arrival data to obtain a first first arrival sequence; D, obtaining a second first arrival sequence; E, obtaining a first arrival difference sequence according to the difference between two adjacent first arrivals in the second first arrival sequence, and obtaining a first singular value editing threshold range according to the average value and the standard deviation of the first arrival difference sequence and a multiple coefficient value thereof; F, determining a second editing threshold range and thenumber of editing iterations; and G, screening the first first arrival data according to the second editing threshold range and the number of editing iterations to obtain the second first arrival data. The method can improve