An updated and expanded version of R-1042/10-11-ARPA, summarizing data on the 168 permanent seismograph stations known to be operating in the USSR in 1970. A table gives the full and abbreviated name of each station, international three-letter abbreviation, geographic coordinates, type of station, seismographs used there, and seismic zone where located. Station locations are shown on maps of the USSR and each of the ten seismic zones. Formulas are given for normal or indicator magnification, an unfamiliar parameter to Western seismologists; a table summarizes instrumental constants by seismograph and station; 137 figures show magnification curves of seismic instruments at 54 base and 75 regional and expeditionary stations. Part II will discuss seismographic instruments in greater detail.
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