ON THE EARTHQUAKE AND VOLCANIC THENOMENA OF JAPAN. 

 Catalogue of Earthquakes— coniinued. 



115 



No. 



Moiitb I Day 



Time 



Duration 



Direc- 

 tion 



Maximum 



Perioil and 



Amplitude ot 



Horizdiital 



Jlotion 



Maximum 



Period and 



Am)ilitude of 



Vertical 



Motion 



Nature nf ( 

 Shock 



n. H. 

 2 12 

 8 30 

 11 44 

 1 49 



6 30 

 1 46 

 5 37 

 52 

 8 37 



11 3 



11 14 



10 39 



5 33 



4 14 



28 



7 19 



4 



1 5 



2 8 



3 35 



8 53 



30 P.Jt. 



9 A.M. 



42 .^.iM. 



15 P.M. 



25 A.M. 



36 P.M. 



10 A..M. 



A.M. 



33 A.M. 



26 A.M. 

 8 A.M. 



28 A.M. 

 48 P.M. 

 50 P.M. 

 19 I'.M. 

 52 P.M. 

 23 P.M. 

 26 P.M. 



P.M. 

 39 A.M. 

 41 A.M.? 



12 34 P.M. 

 53 19 A.M. 

 49 44 P.M. 

 41 32 P.M. 

 10 A.M. 



15 39 A.-M. 



24 3 A.M. 

 32 36 P.M. 

 12 7 A.M. 



7 28 A.M. 

 21 29 P.M. 

 41 46 A.M. 

 53 38 P.M. 



9 3 A.M. 

 21 59 A.M. 



16 19 A.M. 

 58 5 P.M. 



25 1 A.M. 



15 7 A.M. 



1895. 



quick, weak 

 slight 



slow, we.ik 

 slight 



pcrliaps due 

 wiuil 



slight 



to 



II. Observations with Horizontal Pendulums. 

 («) The Instruments, Installation, Character of Movements. 



Since 1893 nineteen sets of records have been obtained from liorizontal 

 pendulums installed either in Tokio or its vicinity. In the following 

 description the different installations or sets of instruments are indicated 

 by letters of the alphabet. The instrument at A, which was in my house, 

 occupied the same position from the commencement of the observations 

 until February 17, 1895, when it was destroyed by fire. The instruments 

 at other stations were kept in position until they had given continuous 

 records for a period of from one to four months, when they were moved 

 to a new locahty. Although these periods may appear short, they seem 

 to have been amply long to determine the general character of the move- 

 ments to be expected at any given station. Instruments within a mile of 



I 2 



