Volcano Ôshima, Idzu. 57 



Osliima took place, and on the next day ashes fell in Yedo 

 (Tôkyô).^^ 



(9) 1822 i^m^^) 



An eruption of Ôshima took place and ashes fell for two or 

 three years."-" 



(10) 1846 i^LitEL^ 

 At about this date an eruption of Ôshima took place.^'* 



(11) 1870 m-lÙEL^) 



A 



A small eruption of Oshima lasted for four days. 



(12; 1876-1877 {mfàJL^~'t^) 

 A rather violent eruption took place in 1876-1877, being 

 Tuinutely described by NAUii.vNN'\ Milne'\ and Wada"\ The erup- 

 tion began toward the end of December, 1876 iWéX^)- On 

 the 27th, an earthquake (airquake ?) occurred, and at night a 

 light on the top of the mountain was seen. The volcanic activity 

 lasted till February 6 (forty days). Lava w-as poured out in the 

 crater of Mihara'^ but it did not run over the brim of the crater. 

 The result of this eruption was the formation of a miniature spatter 

 cone, Naumann'« cone, at the bottom of the Mihara crater. 



(13 1 1912 1914 im-^ùm-t^^—i^îE^^) 

 This eruption lasted for two years and three months, from 



1) ^B*3Ef^-^ m^¥M 2) & 3) ;Ä:^BqfiaSB 



1) " Die Viilkaninsel Oosbima und ihre jüngste Eruption," Zeitschrift '1er Deutschen geolog- 

 ■ischen Gesellschaft, Bd. XXIX., 1877. 



5) "The Volcanoes of Japan," TransacÜims of the Seismological Snclty of Japw, Vol. IX., 

 Tart IL. 1880; Geologica'. Maqnzlne, Decade II., Vol. I, No. 5, 1887. 



r.) " Notes on the Volcano Oshiraa," 'lakugn Shirn, Vol. I., No. 1. 1877 (in .lapanese). 



