112 



REPORT — 1S95, 



lives were lost, the maximum accelerationSj calculated on more certain 

 data, varied between 3,000 and 8,000 millimetres ^5er sec. ^je?' sec. At the 

 University there is a seismometer, consisting of a number of iron shot, 

 arranged on a ledge round the top of a strong post, beneath which there 

 is a bed of sand. These shot were not projected, but all of them, excepting 

 one on the N.E. side, simply fell. The duration of the disturbance is of 

 course that given by seismographs. Horizontal pendulums may have been 

 tilted backwards and forwards for one or two hours. For some time after 

 the shock it was observed that the Sunida River, which runs through 

 Tokio, rose and fell as if its bed continued to be agitated. The direction 

 of motion, as with nearly all earthquakes, was varied, and the direction 

 given is that which was most pronounced. 



The times at which the commencement of the disturbance was recorded 

 at places some distance from Tokio are as follows : — 



From these times and the distribution of destruction it may be 

 a,ssumed that Tokio was well within the epicentral area. 



A remarkable feature distinguishing this earthquake from most others 

 is that during the next three days instead of a long series of after shocks 

 only three disturbances were recorded. The primary shock does not 

 appear to have been accompanied by any sound, while one of the secondary 

 shocks, at 4.25 p.m., on the SOth was preceded by a roaring sound. 



At many places telegraph and telephone wires were broken. Under- 

 ground the pipes of the Yokohama Waterworks were caused to leak, 

 drains were deranged, and there was a falling in of material in a railway 

 tunnel. A curious fact communicated to me by my colleague Professor 

 W. K. Burton is that in his house, where he was barely able to keep his 

 feet while the shaking was going on, several decanters were not upset, 

 but their stoppers were shot out. This is similar to what has occurred on 

 more than one occasion with the lamp glasses at the Kannonsaki light- 

 house in Tokio Bay. 



IV. Miscellaneous. 



In addition to the foregoing work two numbers of the ' Seismological 

 Journal ' have been issued and the manuscript of a catalogue of Japanese 

 earthquakes between 1885 and 1892 has been completed. This catalogue 

 gives the date, the time, the area shaken, and the position of the oi'igin 

 for 8,337 shocks. Appended to each shock are a series of numbers, and 



