Abstract
THIS admirable little book contains a large amount of information in a small space and, although succinct, is eminently readable. The nine chapters include such topics as macroseismic effects, the geography, nature and cause of earthquakes, the method of obtaining seismograms and information concerning shocks, the propagation of earthquake waves, microseisms, and the application of earthquake knowledge chiefly to seismic prospecting. Dealing with the cause of earthquakes, Prof. Jung says: “Concerning the fundamental causes of the formation of mountains, of earthquakes, and vol-canicity there are only suppositions partly substantiated, and no one theory has yet found general recognition”. Thereafter a nice balance is maintained between the various current theories, and an adequate discussion is given of the materials of the earth's crust and beneath the crust, which materials have sufficient strength to cause and maintain oscillations and yet yield to the forces required by isostatic theory.
Kleine Erdbebenkunde
Von Prof. Dr. Karl Jung. (Verständliche Wissenschaft, Band 37.) Pp. v + 159. (Berlin: Julius Springer, 1938.) 4.80 gold marks.
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T., E. Kleine Erdbebenkunde. Nature 143, 876 (1939). https://doi.org/10.1038/143876a0
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DOI: https://doi.org/10.1038/143876a0