OCEANOGRAPHIC INFORMATION FOR SUBMARINE CABLES 



1087 



metric information. The study resulted in conclusions which are of great 

 geological significance, as well as of interest in cable engineering. It was 

 found that the narrow earthcjuake belt which runs the length of the 

 ocean accurately follows a median trench or rift in the central highland 

 zone of the Mid-Atlantic Ridge, see Fig. 25. (The Mid-Atlantic Rift 



r 



Fig. 24 — Earthquake epicenters in the North Athmtic 1910-1956. Magnitudes 

 according to the Richter scale. 



