Yep, Japan is certainly an area in which these principles should be applied for sure so it's good to hear you've got it it sorted.

I agree, the disaster could be so catastrophic that any level of preparation could be rendered useless but if one survives that initial event then some preparation will go a long way. The other thing is that an ethos of preparation and readiness can help mitigate the effects of normal everyday emergencies like cuts, falls, cooking fires and so on that happen every day in homes around the world.

It's good that you are onto it.