Si.uth 

 NorUi 



Fig. 1. Thcî Earthiiuake of June 17th. 1896; 0. 46. 25 p. m. 

 (Observed at Miyako), 

 Multiplication of horizontal motion 5 times, that of vertical motion 10 times. 

 The beginning of motion is marked ". 



Jour Sc. Coll. Vol. XI. PI. XVII. 



West 

 t^ut 



Down 

 Up 



South. 

 North 



West 



Oiust 



Down 

 Up"' 



10 



seconds. 



Fig. 2. The Earthquake of August 31st, 1896; 4. 42. p. m. 

 (Observed at Miyako). 

 Multiplication of horizontal motion 5 times, that of vertical motion 10 titnos. 

 Tho beginning of motion is marked i. 



Fig. 3. Tho Earthquake of April 30th, 1IS97; 5. 51. 15 a. ) 

 (Observed at Miyako). 



