1. College of Software Engineering, Northeastern University , Shenyang 110819 , China
2. Seismic Network Department, China Earthquake Networks Center , Beijing 100029 , China
3. Doctoral School FEIT, Saints Cyril and Methodius University in Skopje , Karpos 2, 18 Rugjer Boskovic, MKD-1000 Skopje , R. N. Macedonia