296 



EEPORT 1889. 



Catalogue op Earthquakes — contiuued. 



The most severe earthquake which was recorded occurred on February 

 18, 1889, at 6h. 9m. 32s. a.m. Diagrams of this earthquake were obtained 

 at the Imperial Meteorological Observatory, and by Professor S. Sekiya 

 and myself at the University. AH of these observations were made upon 

 ground which is tolerably high, and although consisting of alluvium it 

 is fairly hard. This is mentioned because the motion experienced in the 

 lower part of the city, which is built upon soft low ground, and at places 

 nearer the origin was certainly greater than that which we recorded. 

 Professor Sekiya says that after the commencement of the shock there 

 were gentle tremors lasting twelve seconds. These were followed by 

 violent motions having a range of a little less than 12 millimetres in a. 



