Historical seismograms (former USSR network)

        STATION                           PERIOD 
    ____________________________________________________________
        
       1.  SVE                            1913 - 1924
           Sverdlovsk                     1925 - 1930
           Sverdlovskaya Obl.,            1931 - 1935
           RSFSR, USSR                    1935 - 1939
                                          1940 - 1944
                                          1945 - 1949
                                          1950 - 1955
                                          1956 - 1962
       2.  BAK                            1911 - 1940
           Baku,Azerbaydzan, USSR         1941 - 1961
       3.  SIM                            1928 - 1954
           Simferopol', Ukraina, USSR     1955 - 1958
                                          1959 - 1962
       4.  AAA                            1927 - 1946
           Alma-Ata, Kazakhstan, USSR     1947 - 1955
                                          1956 - 1962
       5.  PUL                            1908 - 1927
           Pulkovo                        1928 - 1931
           Leningradskaya Obl.,           1931 - 1936
           RSFSR, USSR                    1936 - 1941
                                          1950 - 1956
                                          1957 - 1959
                                          1960 - 1962
       6.  TAS                            1912 - 1935
           Tashkent, Uzbekistan, USSR     1936 - 1943
                                          1944 - 1948
                                          1949 - 1956
                                          1957 - 1962
       7.  IRK                            1912 - 1931
           Irkutsk                        1932 - 1948
           Irkutskaya Obl., RSFSR,        1949 - 1955
           USSR                           1956 - 1962
       8.  VLA                            1929 - 1948
           Vladivostok                    1949 - 1955
           Primorskiy Kray,RSFSR,USSR     1956 - 1962
       9.  TIF                            1912 - 1937
           Tiflis (Tbilisi, Tbilissi)     1918 - 1959
           Grusiya, USSR                  1938 - 1962

Last revision September 21, 1995