SECONDARY ÜNDI^LATIONS OF OCEANIC TIDES. 103 



iug of tlie sea before the arrival of high water is recorded on the coast 

 of Awa, Kaznsa, Shimosa, Totomi, Ise ; in the last province the sea had 

 receded for about two hours before the arrival of the wave crest. Coasts 

 of Seto-naikai and the Bay of Osaka were safe. 



15. Dec. 2, IGll. Sea waves on the coast of Sanriku and Hokkaido. 



10. Nov. 26, 1614, Sea waves on the coast of Echigo. 



17, March 1, 1633, Sea waves on the coast of Atami in Izu. 



18, Oct, 30, 1662, Sea waves on the coast of Hiuga and Ôsumi ; 

 several square miles of laud lost under sea, 



19, April 13, 1677. Sea waves on the southern coast of Eikuchiu ; 

 at Mijako, three large waves counted in the interval ca. 10'' p.m. -2'' a.m. 



20, Dec. 30, 1703, Sea waves on the coast of Sagami, Awa, and 

 Kazusa ; four waves counted, 



21, Oct. 28, 1707, Remarkable great sea waves devastated the 

 Pacific coasts of Kiushiu, Sliikoku, and also of Honshiu up to Izu to the 

 north. In Susaki, Tosa, eleven or twelve waves were counted in the 

 interval about 3'' p.m. 4'' a.m. ; at Ivcclii, the w^ave reached so far into 

 the land as several km.; at the same district, the third wave was the 

 highest. Coasts of the Bay of Osaka were also damaged by waves. 



22, Aug. 29, 1769. Sea wave in Satsuma, 



23, Feb, 10, 1792. Sea wave at Shimabara in Hizen, accompanj-- 

 iug the eruption of Mt. Unsen""' ; it is recorded that the high tide 

 occurred seven or eight times a day. On this occasion a portion of the 

 mountain was split up and fell into the sea forming a number of small 

 isles. Inundated area, however, was confined to the coast of the Sea of 

 Tsukushi. 



24, June 29, 1799. Sea wave at Miyakoshiura, Kaga. 



25, July 10, 1804, Sea waves at Ivisakata ; a portion of the sea 

 upheaved into land, 



26, Dec. 12, 1833, Ssa wave in Sado : draining of the sea was 

 observed before the arrival of the high water, 



*) F. Omori, Nota 'on the eniption of the Unsen-daké in the 4th year of Kansei (1792) 

 Proc. Tokyo, Math.-Phys. Soc. 4, p. 32, 1907. 



