Etymology and distribution of 砂土.

Sunatsuchi 【砂土】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

筑地 Tsukiji reference.

Sunado 【砂土】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Kumamoto-ken Uki-shi .

① Topography . From a pair of fields. Kumamoto-ken Uki-shi Shiranui Town Nagasaki is based.

② Origin of Nagasaki-ken Tsushima-shi . Place name with a record since the Kofun period. Yamaguchi - ken Shimonoseki - shi Toyoura Town In the Mihazu Municipal Town Tsushima Shop, say the Meiji New Last Name using "pair" of the Tsushima store 's shop name used in the Edo period. The pronunciation is tusks. In Aomori-ken , it is tuska. Aomori-ken has 対馬 surname. 対馬 Tsushima reference.