What You Actually Need in a Disaster
Not the catalog's "nice to have" - the priority order that emerges from survivors' records.
Where the "survivors' voices" come from
Disaster-gear lists are everywhere, but the ones worth trusting are grounded in the records of people who actually lived through it. After major earthquakes, Japan's Cabinet Office and municipalities have surveyed affected residents, and the findings are published in reports and preparedness materials. The items that repeatedly surface as "what helped" and "what we badly missed" show clear patterns. This page organizes priorities around what those public records and news archives consistently point to.
What people most regretted not having
1. Water: at the top of virtually every record - not just for drinking, but for hand-washing and cooking. Make it the first pillar of your stockpile (the Home Stockpile Checklist calculates your amounts). Long-life water
2. Toilets: toilet failure during water outages is among the most painful problems in survivors' accounts. Far fewer households prepare for it than for food and water, and "I never imagined it would be this hard" is a recurring sentiment. The guide is 5 uses per person per day. Emergency toilets
3. Power and light: a dead phone in a blackout means losing contact, information and light all at once. A power bank plus battery-powered lights is the standard combination. Power banks
4. Cash (small denominations): cards and mobile payments fail in blackouts. Across disasters, "only cash worked" is a common report. Keep 1,000-yen notes and coins on hand.
5. A way to get information: with mobile networks unstable, radio proved the dependable news source in many accounts. Emergency radios
The unglamorous essentials
Nothing flashy, yet they keep appearing in survivors' records:
- Wet wipes and body wipes: hygiene and morale through days without a bath
- Cling film and plastic bags: line plates to save water; improvised warmth and first aid
- Spare glasses or contacts: broken or lost with no replacement - a distinctly common regret
- Regular medicine and the medication notebook case: knowing the prescription makes care away from home far smoother
- Hand warmers and mylar blankets: the difference-makers through unheated winter nights
What some report barely using
It depends on circumstances, but some items draw "used it less than expected" comments: elaborate survival knives, large amounts of rope, tents. In urban evacuations their moments rarely came. The rational order is to secure what everyone certainly uses - water, toilet, power, cash, information - before adding situational extras.
See the full picture in the Emergency Go-Bag Checklist, and what helps specifically in shelters in the Shelter Life Guide.
Related pages
PR — This page contains promotional content
Frequently asked questions
If I prepare only one thing, what should it be?
Water. It touches drinking, cooking and hygiene, and every disaster record describes its shortage as the most serious.
Why are emergency toilets such a big deal?
A water outage disables toilets within hours, and holding it in causes real health harm. It is the biggest gap between need and preparation.
How much cash should I keep?
There is no fixed amount; coins and 1,000-yen notes are the most practical for payphones and small purchases.
Where can I read survivors' accounts?
Japan's Cabinet Office disaster-prevention pages, municipal earthquake records, and news archives publish them.
Does an expensive ready-made kit settle it?
Kits are a good starting point but need additions for your household. Check the contents and fill the gaps.
Can a car replace home preparations?
A car helps as a refuge and power source, but depends on fuel and road conditions. It complements home stockpiles; it does not replace them.
※ This article provides general information about everyday disaster preparedness. In an actual emergency, follow the latest updates from the Japan Meteorological Agency and your local government.