THE ERUPTION OF BANDAI-SAN. 



165 



Earthquakes. 



About 5 days before the 

 eruption somewhat strong 

 earthquakes occurred twice. 

 A slight shock at about 7 a.m. 

 on the day of the explosion. 



At about h. 30 m. a.m. 

 on the 11th of this month, an 

 earthquake was felt. 



Meteorological Conditions. 



No earthquake on previous 

 days. At about 8 a.m. a very 

 severe shaking experienced 

 continuing for 5 minutes. It 

 was very violent and the 

 people felt as if the ground 

 was suddenly upheaved. 



Nobody felt any shock. 



At 7 a.m. a slight shock, 

 before we heard the rumbling 

 noises. 



Very fine ; some patches of 

 cloud seen in the eastern sky. 

 \\ estera breeze at the time of 

 the eruption. 



Very fine before the erup- 

 tion ; the wind was northerly ; 

 after the eruption it appeared 

 as if it had changed to N.W. 



Very fine, and no cloud, 

 calm, temperature reaching 

 to 90° F. in sunshine. N.W. 

 wind at the time of the out- 

 burst. 



Very fine ; calm. Weather 

 somewhat changed in the af- 

 ternoon. 



Miscellaneous Notes. 



No lightning or smoke seen ; no 

 change in rivers, springs, wells, etc. 



From the ascending columns light- 

 ning was emitted. The smoke soon 

 covered the top of Bandai. N.W. wind 

 blowing at the time ; ashes fell at the 

 village of Yokohama, nearly 2 ri N.E. 

 from this place, coating the vegetation 

 with greyish powder. 



While the heaven was clear, a 

 very peculiar cloud (which I afterwards 

 learned to have been steam) appeared 

 near Adatara-san. There was neither 

 lightning nor fire. 



A black streak of cloud appeared, 

 with beautiful stripes of purple, red, 

 yellow, and green, probably caused by 

 the reflection and refraction of sunlight 

 falling upon steam. 



