Radial and Transverse receiver functions in Guangdong, Fujian, Jiangxi, Hunan, Guangxi Provinces in China.

Seismic data from 126 permanent seismic stations run by the China Earthquake Administration between 2009 and 2015 were processed. Teleseismic waveform recordings with a magnitude greater than M6.0 and epicentral distances ranging from 30° to 90° were considered. The back azimuth coverage of these events is overall adequate for anisotropy analysis . The RFs were computed following the source equalization procedure with a water-level parameter of 0.001 and a Gaussian width of 2.5. We manually evaluated these receiver functions by checking the Ps signals, and high-quality radial and transverse RFs were selected for further processing.

本研究处理了2009年至2015年间由中国地震局（China Earthquake Administration）运维的126个固定地震台站的地震数据。本次分析纳入震级大于M6.0、震中距介于30°至90°的远震波形记录。上述事件的反方位角覆盖范围整体上可满足各向异性分析的需求。接收函数（Receiver Functions，RFs）的计算遵循源均衡流程，其中水位参数设为0.001，高斯宽度为2.5。研究团队通过核查Ps震相对这些接收函数进行人工评估，并筛选出高质量的径向与横向接收函数用于后续处理。