Singapore island. Top half cover by Johore, on the west side cover by Sumatra Indonesia. On the south cover by Batam or called ir Riau Island . On the east side cover by Tekong,Ubin , part of Johore.
So chance Tsunami more than 2m height are near to 0%.
Our ministers even more stupid dont study the Geography. If Tsunami happen our neighbouring country like Malaysia and Indonesia will be flat before hit Singapore island.