﻿Seismograms 
  

  

  October 
  i6, 
  1907 
  

  

  1 
  ft.ji^^mj 
  

  

  October 
  16, 
  1007 
  

   East-west 
  vibrations 
  

  

  t 
  B»j>v,T,;.,a 
  9.< 
  

  

  