Application of Hebei 2015 Crustal Velocity Model in Hebei Seismic Network For Cataloging and Quick Report

Hebei 2015 crustal velocity model (hereinafter referred to as the new model) is a regional crustal double-layer velocity model, which was established based on the digital seismic data of Hebei province from 2009 to 2014 and geological conditions of Hebei province. To improve the quality of seismic quick report and cataloging, the simplex, Hyposat and Geiger methods were used to locate 90 significant earthquakes from 2009 to 2016 in ISDP and MSDP with the new model and old model. Through analyzing the location residuals, epicenter deviation and magnitude, it revealed that the location result from the new model is not far from the other two models. The differences between of them are meeting the specification of earthquake quick report and cataloging, and also more suitable for the location analysis of Hebei regional earthquake. All of the above works provided the reliability for the practical application of the new model in Hebei province.