采用和达法提高吉林测震台网近震定位精度

Promoting the locating accuracy of local earthquakes of Jilin Seismic Network with Wadachi method

论证和达曲线法鉴别近震直达Pg波和直达Sg波的原理,以松原近震及震群编目为例,采用和达法,进行震相修正,并探讨该方法对吉林测震台网近震定位精度的作用。研究发现,采用和达法,对提高地震定位精度作用明显。

In the study, the principle of distinguishing Pg and Sg with Wadati method is demonstrated. By correcting the phases of Songyuan earthquakes, as a sample, the effect of Wadati method on promoting earthquake location accuracy in Jilin Seismic Network is also demonstrated. The primary purpose of this study is to improve the earthquake location accuracy with Wadati method in Jilin Seismic Network. The result shows that this method had a great inlfuence in improving the earthquake location accuracy.