I commented below about doing what I am doing to not worry about it. Naturally it and was immediately dismissed by a panic induced response.
FUD is extremely powerful people.
If you want to stock up on some extra water and food - cool beans. But stay conscious of your own fears and manage your stress levels. Do what you can to stay calm about things and handle your emotions wisely.
Restaurants shutting down and grocery stores running low on food seems like a more likely scenario.
Regardless, I've now stocked up on 2 weeks of water and about the same of food. Which is a good idea anyway for earthquake preparedness, but something I'd never gotten around to actually doing. So I'm feeling a good balance of prepared but not too stressed about it.
Everyone keeps saying that, but what does it mean? What food did you buy, and how much water? I can't get a handle on how much that is. I'm not panicing, at all, I just want to have enough when everyone ELSE panics.
I also hate the thought of boredom, so I'm trying every canned fish I can to see what I like, so I at least have some variety and flavour for those two weeks.
It's not rocket science. Take what you eat in a day and multiply it by 14. Go for non perishable things of course (pasta, rice, lentils, canned fruits etc.)
I mean, realistically speaking you could probably go two weeks with <1k cal a day without much trouble.
Food - 2000 calories per day for every male, 1500 for every female.
And buy a water filter and gas burner/camping stove.
Honestly, more people should be doing this anyway. If you live in an earthquake zone and don't have an emergency preparedness kit, you're in trouble if significant infrastructure damage happens in an earthquake. Likewise for snowstorms, floods, power outages, etc.
It's probably not going to happen, and it's probably not a big deal, but if there is an emergency at some point I don't want to have to tell my neighbours they're on their own for a week because we (minimally) prepared and they didn't.