422 F. o.M()Ei : 



Both fig. 9 and fig. 11 indicate a well pronounced maxi- 

 mum in the loth century, followed by a, minimum in the latter 

 half of the 17th and the first half of the 18th century. The 

 seismic activity in Kyoto at the present time seems to he on its 

 way to a second maximum, which may happen possibly 150 or 

 200 years hence. Anyway it seems not prudent to conclude 

 that the seismic activity in Kyoto is gradually dying away'. 

 The curve of total seismic activity in Kyoto, fig. 9, indicates a 

 well-pronounced maximum in the latter half of the 9th century, 

 in which interval the number of small shocks alone amounted 

 to 327. We can not, however, conclude from this at once that 

 the seismic activity in Kyoto reached really its absolute maxi- 

 mum in the 9tli century. For, the predominating element of 

 the curve in fig. 9 is formed by small earthquakes, wliose re- 

 corded number, it must be observed, would largely depend on 

 the state of the development of literature of the times. As the 

 9th century was one of the epochs in Japanese history, in which 

 our literature greatly fiourished, the record of earthquakes in 

 this century is doubtless much more complete than in some others. 

 On the other hand, the number of records of destructive and 

 strong earthquakes would be influenced to a comparatively in- 

 significant amount by the state of the times ; and according to fig. 

 11, which illustrates the time-distribution of 228 destructive and 

 strong earthquakes in Kyoto, the maximum in the latter half of 

 the 9th century was much smaller than that in the 15tli century, 

 24. Finally I give in Table XIV, for the sake of reference, 

 the yearly numbers of earthquakes in Kyoto during 13 years bet- 

 ween 1885 and 1897. The numbers for the two years, 1891 



1) 8ec Professor John ISIilne's paper: Note on the Great EarthquakeH in Japan. 

 2Van». Seis. »Sue. Joixui. Vol. III. 



