About the Long Past 



under the ocean. Many an earthquake felt on 

 land has its origin under the sea ; and others are 

 so far out as to be felt only by passing ships. 

 In the Pacific alone it is said that about two 

 thousand five hundred shocks occur in the course 

 of a year. Of the eight or ten thousand shocks, 

 believed to be about the average number through- 

 out the world annually, fully half have their 

 origin beneath ocean-waters. 



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