TY JOUR TI World Seismic Networks and Earthquake Catalogs KW seismic networks; seismological agencies; earthquake catalogs; representative magnitude; magnitude scale; catalog completenes KW merging earthquake catalogs JO Russian Journal of Earth Sciences AU Gvishiani, A.D. AU Dzeranov, B.V. AU Skorkina, A.A. AU Dzeboev, B.A. PY 2024 IS 24 PB Geophysical Center of the Russian Academy of Sciences