While Tokyo has become safer than 10 years ago, there is still a need to further increase the ratio of homes with quake-resistant measures. I urge all residents to stock up on enough food and supplies to survive for at least three days.

I don’t get the point of that. Either there’s not much destruction and you get enough supply and help immediately or everything is devastated completely in a wider area and then chances are you won’t get any help or supply and die after those three days anyway.

Sven - I take it you weren’t here in 2011?

increase the ratio of homes with quake-resistant measures

Read quake-resilience measures: it could take a few days to get supply chains up and running again.

Rather than keep a dedicated supply of the expensive, unappetising long-life emergency food, just make a habit of having a few days' worth of less perishables and non-perishables in your fridge and cupboard. If a quake/typhoon/Godzilla knocks the power out, eat what's in your fridge first.

I was. And there was full supply, from JSDF water supplies, even US operations ’Tomodachi’ and up to free accommodation container villages. Not always the perfect logistics, but anyhow still some kind of sufficient. I didn’t hear about mass starving then, caused by missing three day personal supply in all their individual homes. Doesn’t even make much sense if the houses crash all down like playing card towers in case of bigger quakes. A bigger stored supply at central safe points makes more sense, don’t you think so?

Euhhhhhh!

3 days food survival???

I do grocery shoping once a week while I still have food for a week at least, regardless of living in a earthquake prone area or not.