2016年门源6.4级地震波形分析

Analysis of the Waveform from 2016 MenYuan M6.4 Earthquake

采用格尔木地震台数字地震仪记录青海省门源县M 6.4级地震信息,并结合震相分析软件进行研究,对此次地震的波形数据进行分析和研究。结果显示:海北州门源县地震的震相特征符合一般近震,震相有Pn、Pg、Sn、Sg,运用单台定位处理方法估测出地震的震源深度为10Km,与Hypoast定位方法测定结果近似一致,利用初至波估算出格尔木台震中距约为756Km。

Taking digital seismic instrument in Golmud seismic station recorded the information of M6.4 earthquak occurred in MenYuan county of Qinghai province, and combining with the seismic phase analysis software, this paper analysised and researched the earthquake waveform date. Results showed that :The characteristics of earthquake occurred in Menyuan County Haibei Prefecture was consistent with the general near earthquake, seismic phase characteristics showing Pn、Pg、Sn、Sg. The estimated focal depth of the earthquake was 10km by using single station positioning processing method, it was approximately identical to the result by using Hypoast positioning method. And it was estimated that the epicentral distance was about 756Km by detecting the first arrival wave in Golmud station.