Imprint varies.
Description based on: 1978.
Vols. for 1928-19 issued by: U.S. Coast and Geodetic Survey; 19 -1969 by: National Earthquake Information Center; 1970 by: National Geophysical Data Center; 1971-72 by: National Geophysical and Solar-Terrestrial Data Center; 1973-19 by: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, and U.S. Dept. of the Interior, Geological Survey; <1984>- by: U.S. Dept. of the Interior, Geological Survey.