My Mom has some friends that are living in Japan. The lady has posted some of their experiences
HERE. I don't know if you would call them preppers, but they do have food storage and a good mindset.
Here are some lessons learned from a quick read of their experience. What do you guys pick up reading it?
Hospital evacuated, you may be responsible for your own injuries.
Power, heat, cooling, phones, internet may all be down. Have plans to deal with this as well as plans on using what resources you DO have.
Stores:No power (have LOTS of batteries or ways to charge them?) Store only accepting cash. Maybe it’s a good idea to have a large portion of that “emergency fund” in small cash bills, and not existing as a number in a bank’s computer.
Food/Item Storage: it is good to have, but make sure you are doing (weekly?) inventory so you know what you have and what you need.
Shelter: If your home is damaged or even if it isn’t it may be a good idea to have another shelter to stay in to avoid further damage from aftershocks. (Tent’s set up away from trees or other structures that could fall on you.)
Stress: Everyone will be stressed out and it is smart to have ways to alleviate it. Books, games, and chores to keep busy. Go over some stress relief techniques such as breathing and mind imaging exercises.
Candles could be a scary thing to have burning. There is a risk of fire from broken gas lines and all the debris that may be present. If you have open flame, don’t leave it unattended.