The average shear wave velocity for a soil depth of 30 m (V_S30) is crucial for seismic hazard assessments. However, V_S30 measurements are not available at most recording stations in Korea. The P-wave seismogram method is an efficient way to estimate V_S30 because it only utilizes P-wave seismograms recorded on the ground surface without boring process. V_S30 measurements for 51 recording stations are acquired from previous literature, and downhole tests were performed at 10 stations for additional V_S30 measurements. The P-wave seismogram method is validated for 50 stations using 359 seismograms recorded during 66 earthquake events with local magnitudes greater than 3.0. The average shear wave velocity for a certain depth (V_SZ) can be estimated using the ratio of radial to vertical components in the initial P-wave velocity seismograms, which can be converted to V_S30 using an empirical relationship. The residuals between the measured and estimated V_S30 are divided into the overall bias, between-site residuals, and within-site residuals. The standard deviation for between-site residuals is 0.37, which is comparable with the values of previous studies for other countries. After bias correction, 70% of measured V_S30 and estimated V_S30 are within ±50% of each other. This study estimates V_S30 values for 118 stations where V_S30 is not available.

土壤深度为30 m（V _{S 30}）时的平均剪切波速度对于地震危险性评估至关重要。但是，韩国大部分的录音站都无法进行V _{S 30}测量。的P -wave地震记录方法是估计的有效方式V_小号30，因为它仅使用P记录在地面上而不镗过程-wave地震图。从以前的文献中获得了51个记录站的V _{S 30}测量值，并在10个站上进行了额外的V _{S 30}测量值的井下测试。的在66个地震事件中记录的359个地震图（局部震级大于3.0）对50个站的P波地震图方法进行了验证。可以使用初始P波速度地震图中的径向分量与垂直分量之比来估算特定深度（V _SZ）的平均剪切波速度，可以使用经验关系将其转换为V _{S 30}。测量的和估计的V _{S 30}之间的残差分为总体偏差，站点间残差和站点内残差。站点间残差的标准偏差为0.37，与先前针对其他国家的研究值相当。经过偏差校正后，测得的V _{S 30}和估算的V _{S 30}的70％彼此在±50％之内。这项研究估计了118个站的V _{S 30}值，其中V _{S 30}不可用。