Principal Earthquake Catalog Sources of Russia and the Former Soviet Union

Catalogs of Earthquakes in Russia
By the end of the 20th century, four principal earthquake catalogs had been compiled and published (one electronically):

In compiling the composite regional catalogs, additional event data were taken from the catalog published by SevMorGeo, the book, "The Seismic Regionalization of USSR Territory", and various other publications. Some non-instrumental data were taken from a collection of felt earthquakes by Nikonov and Ananin (still being compiled). At present, not all of the available data are in electronic format.