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POPULAR SCIENCE MONTHLY 



Frc 12, a Looking East along Belt of Fissuring at Base of the Paltsadoes, showing 

 one of several parallel fault planes in the sand, with craterlets of mud. 



Fig. 12, b. Looking Southeast across Fauitkd Belt. 



on their cement base to the eastward some three inches or more in spite 

 of the attendant friction. The amplitude was probably less than an 

 inch at Kingston. 



The speed of the various waves in this earthquake can only be ap- 

 proximated. During a slight shock that occurred afterwards, of about 

 one third the intensity, from an interrupted telephone conversation 

 from Kingston to Port Antonio, it was estimated that the wave traveled 

 about two thousand feet per second. As yet no data have been avail- 

 able concerning the breaking of the cables, and as to the exact time or 

 speed as marked by such fractures. The Panama cable was broken 

 in two places, one four miles and the other some twenty miles offshore 

 from Bull Bay, but so covered was it with debris that a couple of miles 



