▁ 1 , 7 0 0 ▁houses ▁dam aged ▁or ▁destroyed . ▁▁ ▁Four ▁years ▁after ▁the ▁t sun ami , ▁on ▁ 2 2 ▁November ▁ 2 0 1 5 , ▁a ▁" town ▁opening " ▁ceremony ▁was ▁held ▁in ▁Tar ō ▁after ▁the ▁completion ▁of ▁ 4 5 0 ▁new ▁houses . ▁The ▁new ▁houses ▁were ▁built ▁on ▁higher ▁ground ▁some ▁ 4 0 ▁to ▁ 6 0 ▁meters ▁above ▁the ▁sea ▁level , ▁as ▁well ▁as ▁on ▁ground ▁that ▁had ▁been ▁raised ▁by ▁about ▁ 2 ▁meters . ▁A ▁ 1 4 . 7 - met re ▁se aw all ▁was ▁also ▁re built ▁by ▁ 2 0 1 7 . ▁ ▁The ▁population ▁of ▁the ▁town ▁however ▁had ▁dropped ▁to ▁ 3 , 1 7 3 , ▁around ▁ 7 0 ▁percent ▁of ▁the ▁ 2 0 1 1 ▁level . ▁ ▁References ▁ ▁External ▁links ▁ ▁Official ▁website ▁of ▁Mi y ako ▁▁ ▁Tar ō ▁sea ▁wall ▁before ▁and ▁after ▁the ▁t sun ami ▁by ▁N H K ▁ ▁Aer ial ▁views ▁showing ▁the ▁extent ▁of ▁Tar ō ' s ▁coast al ▁def ences ▁before ▁March ▁ 2 0 1 1 ▁ ▁Computer ▁graph ic ▁showing ▁the ▁effects ▁of ▁the ▁t sun ami ▁on ▁Tar ō . ▁ ▁Category : D iss ol ved ▁municipal ities ▁of ▁I w ate ▁Pref ect ure ▁Category : M iy ako , ▁I w ate <0x0A> </s> ▁The ▁Char itable ▁Be quest s ▁Act ▁was ▁introduced ▁by ▁Sir ▁Robert ▁Pe el