Earthquake Safety in Japan: Preparing a Home Emergency Kit
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Build a Japan-ready earthquake kit you can actually carry, keep, and use. This guide breaks down what to pack for 3–7+ days, how much water you really need, Japan-specific items like emergency toilets and 171 voicemail, and simple ways to secure your home.
Why every household in Japan needs a kit
Japan experiences frequent earthquakes. The good news is that daily preparedness—stockpiling for at least three days (ideally a week), securing furniture, and knowing your alerts—dramatically reduces risk and stress. Tokyo’s official Stockpiling Navi recommends one week’s supplies per person, including 3 liters of water per day and an emergency toilet; it also promotes simple home safety steps like anchoring furniture and applying anti-shatter film to windows.
Japan’s Earthquake Early Warning (EEW) system, run by the Japan Meteorological Agency (JMA), can give you a few seconds of heads-up before strong shaking—enough to protect your head and move away from glass. Treat the EEW as a trigger to shelter immediately.
Set your target: 3 days minimum, 7 days ideal
Authorities emphasize at least three days of supplies, with one week as the preferred goal (particularly in dense metro areas where logistics can stall). The easiest approach is a “layered kit”: a grab-and-go bag for evacuation plus a home stockpile for shelter-in-place. Tokyo’s guidance endorses this model and lets you calculate quantities per family member.
The Japan-ready earthquake kit checklist
Below is a practical list you can build from. Tailor it to your family, climate, and home layout.
Water and food
- Water: 3 liters per person per day (drinking + minimal hygiene). Aim for 7 days if space allows. Store in multiple containers.
- Food: Ready-to-eat shelf-stable items your household likes (retort pouches, canned fish/beans, instant rice, biscuits, energy bars). Rotate using the “rolling stock” method (use and replace). Tokyo’s guidance highlights easy-to-store staples and rotation.
- Manual can opener + spork/chopsticks + lightweight mess kit.
Water and food calculator (quick reference)
| Household | 3 days (L) | 7 days (L) |
|---|---|---|
| 1 person | 9 | 21 |
| 2 people | 18 | 42 |
| 3 people | 27 | 63 |
| 4 people | 36 | 84 |
| 5 people | 45 | 105 |
| 6 people | 54 | 126 |
Based on 3 L/person/day; aligns with Tokyo’s stockpiling guidance.
Power and light
- Headlamps (hands-free; one per person) and spare batteries.
- Portable charger/power bank (keep topped up) and a multi-port cable.
- Small solar panel or hand-crank radio/light for long outages (hand-crank radios are common in Japan).
Health and hygiene
- First-aid kit (bandages, sterile pads, antiseptic, pain reliever, any routine meds). Keep copies of prescriptions and enough medication for at least one week.
- Dust masks, work gloves, eye protection, earplugs (for noisy shelters), hand sanitizer, wet wipes, toothbrush/paste, tissues.
- Emergency toilet: Stock disposable toilet kits and bags; water service can stop even if your building looks fine. Guidance in Japan specifically recommends preparing an emergency toilet for each household.
Clothing and warmth
- Seasonal layers, rain protection, warm hat, spare socks, compact emergency blanket.
- Sturdy shoes near each bed to avoid stepping on broken glass.
Tools and safety
- Whistle (for signaling), multi-tool, duct tape, zip ties, paracord, small pry bar, waterproof matches/lighter.
- Copies of keys, small cash in yen (ATMs and cards may be down), and a small AM/FM radio for updates (NHK WORLD and local stations provide multilingual news).
Documents and contacts
- Printed contact card (family, neighbors, embassy, work, school, building management).
- Copies of passport, residence card, insurance cards, prescriptions—sealed in a waterproof pouch.
- Local hazard map printout with evacuation sites and routes; don’t rely on phone signal. (See MLIT’s portal and GSI maps below.)
For infants, seniors, and pets
- Infants: formula/food, bottles, diapers, rash cream, baby wipes, baby carrier.
- Seniors: extra meds, mobility aids, spare glasses/hearing-aid batteries.
- Pets: leashes/carrier, waste bags, pads/litter, 1–2 weeks of food and water, copies of vaccination records, microchip info, and comfort items. Tokyo’s pet preparedness tips emphasize planning supplies and evacuation practices.
Your earthquake “Go-Bag” vs your home stockpile
Use a Go-Bag (backpack) for fast evacuation and a home stockpile (bins or shelves) for shelter-in-place. Tokyo’s Stockpiling Navi shows how to stage items across the home—kitchen, entryway, bedroom—so they’re reachable even if a room is blocked.
Pro tip: Pack mini-kits at the workplace and in kids’ school bags (mask, wipes, small flashlight, phone numbers, snack). Many people are away from home when quakes hit.
Related reading: Setting Up Utilities in Japan · Cost of Living in Japan 2025 · Japanese SIM Cards and Internet
Home safety that multiplies your kit’s value
A good kit is even more powerful when your home is safer. These simple steps come directly from Tokyo’s and JMA’s safety playbooks.
Secure furniture and glass
Most earthquake injuries come from falling objects, not building collapse. Use wall anchors, tension poles, safety straps, latches, and anti-slip mats to stop tall furniture and appliances from tipping. Anti-shatter film reduces glass hazards. Tokyo’s official preparedness pages and fire department materials promote these measures.
If you live on tatami, place a rigid board under bookshelves to improve stability, and avoid placing heavy items near beds. (Utility guidance in Kansai echoes this advice.)
Know your gas and electric shutoffs
In much of Japan, microcomputer gas meters automatically shut off after strong shaking (around JMA seismic intensity 5+). Don’t relight flames while shaking is ongoing; once safe and after checking for leaks/smell, follow your utility’s restart instructions.
Consider a seismic breaker that cuts household power during strong quakes to reduce fire risk when you’re away. Some municipalities recommend them.
Related reading: Renting an Apartment in Japan · Moving Companies in Japan
Understand Japan’s shaking scale (Shindo)
Japan reports shaking in JMA Seismic Intensity (Shindo) from 0 to 7, with “5 Lower/Upper” and “6 Lower/Upper.” At 5 Lower, unsecured items fall and doors may jam; at 6 Upper, most unsecured furniture topples and it’s hard to move without crawling. Knowing these levels helps you plan furniture anchoring and what to expect.
Alerts you should set up today
Earthquake Early Warning (EEW)
Turn on EEW notifications on your smartphone and learn the alert sound. When you receive one, protect your head, shelter under sturdy furniture, and move away from glass. Avoid rushing outside during shaking.
“Safety tips” app (multilingual)
Install the free Safety tips app (Japan Tourism Agency). It pushes earthquake, tsunami, and weather warnings in multiple languages and includes evacuation flowcharts and useful phrases.
NHK WORLD-JAPAN and radio backups
NHK WORLD-JAPAN provides emergency updates (and now wider multilingual alerting) via app and broadcast—handy if mobile data is spotty. Keep a small radio in your kit.
Related reading: Watching TV in Japan · Volunteering in Japan
When phones jam: use NTT’s Disaster Emergency Message Dial 171
After large disasters, phone networks can be congested. 171 is a voice message board service that lets families in the affected area record and check messages using their home phone numbers; it’s also open for practice on set days. Learn the simple dial-in steps now (record/playback) so your family can reconnect when lines are busy.
Map your risks and evacuation routes
Check official hazard maps (flood, tsunami, landslide, liquefaction) for your neighborhood and workplace. Two good portals:
- MLIT Disaster Prevention Portal: links to municipal hazard maps and real-time disaster information.
- GSI Maps: national base maps, aerial photos, and disaster layers. Print your routes and shelters.
Walk your route once a year—note bridges, narrow lanes, and fallback meeting points.
Related reading: Expat Communities in Japan · Biking in Japan
Pack these Japan-specific items many newcomers miss
- Emergency toilet kit and heavy-duty trash bags (double-bagging). A high-priority item in Japanese guidance and evacuation planning.
- Work gloves (thick), dust mask, and eye protection for debris cleanup.
- Small cash in yen (coins help with public phones and vending).
- Portable gas stove with spare canisters for hot meals—use only in ventilated areas and never during shaking. (Tokyo’s stockpiling pages list stoves as a comfort-and-nutrition essential.)
- Printouts: hazard map, contacts, medication list, and “171” how-to.
Related reading: Finding International Groceries in Japan · Eating Out in Japan
Family plan: who grabs what, when, and where to meet
- Assign roles: one person grabs the Go-Bag; another checks gas/electric (if safe to do so after shaking).
- Meeting points: a nearby spot (outside your building) and a distant spot (friend’s place or park).
- Communication: try SMS/data first; if jammed, switch to 171 voice messages.
- Pets: practice carrier-in/out and keep a leash by the door.
Practice on key dates: Japan marks Disaster Prevention Day on September 1—a great reminder to refresh kits and run a drill.
What to do when an EEW sounds or shaking starts
- Indoors: Protect your head, get under a sturdy table, move away from windows and tall furniture. Don’t rush outside mid-shake.
- Kitchen: Turn off flames after the shaking stops; many gas meters shut off automatically in strong quakes.
- Near the coast: If you feel strong or long shaking, evacuate to high ground immediately—don’t wait for a siren.
- Driving: Hazard lights, slow down, pull over safely; listen to official updates.
Kit essentials table: what, why, and a Japan tip
| Category | What to pack | Why it matters | Japan-specific tip |
|---|---|---|---|
| Water & Food | Bottled water; retort pouches, instant rice, canned foods | Hydration & calories when stores/logistics stop | Use rolling stock; store stoves/canisters safely. |
| Lighting & Power | Headlamps, batteries, power bank, crank radio | Light at night, device charging, info access | Keep a small radio for NHK WORLD and local updates. |
| Health & Hygiene | First-aid kit, meds, sanitizer, wipes, masks | Treat minor injuries; reduce infection | Pack prescriptions and copies; check medication import rules if new to Japan. |
| Sanitation | Emergency toilet kits, heavy bags, tissues | Water outages are common post-quake | One week of toilet supplies is strongly recommended. |
| Tools & Safety | Multi-tool, whistle, gloves, goggles | Self-rescue, signaling, safe cleanup | Add pry bar/duct tape; anchor furniture in advance. |
| Documents | Copies of ID, contacts, hazard map | Identity and navigation when offline | Print 171 instructions and evacuation sites. |
| Pets | Food, water, carrier, records | Smooth evacuation and sheltering | Follow TMG’s pet supply guidance and practice. |
Related reading: Earthquake Safety Kit for Renters in Japan · Housing Deposits in Japan Explained
Mini kits for places you spend time
- Workplace: compact snacks, water, phone cable, headlamp, mask, printed numbers, and walking shoes.
- Children’s bags: small flashlight, ID card, snack, tissues, band-aids, comfort item.
- Car: water, blanket, first-aid, phone cable, reflective triangle; never run engine in enclosed spaces.
Related reading: Tokyo Subway Guide · Renting a Car in Japan
How to store kits in small Japanese homes
Tokyo’s Stockpiling Navi offers clever storage ideas: under-bed bins, high shelves with safety latches, and distributing supplies across rooms so one blocked doorway doesn’t trap everything. Use clear boxes and a simple quarterly checklist to rotate food and batteries.
Maintain and refresh: a simple schedule
| Month | Action |
|---|---|
| March | Replace snacks and meds; test power banks; review family plan. |
| June | Recheck hazard maps/evac routes; inspect anchors/straps. |
| September (1st) | Disaster Prevention Day drill; rotate water and stove canisters. |
| December | Winterize clothing/blankets; inventory pet supplies. |
Quick wins you can do today
- Install “Safety tips” and enable notifications in your language.
- Print your hazard map and tape it inside a cabinet door.
- Anchor one tall bookcase and apply anti-shatter film to a risky window.
- Pack a basic Go-Bag with water, light, snacks, copies of documents, and a compact toilet kit.
- Teach your family 171 and EEW actions; run a 5-minute drill.
Related reading: Safety in Japan: Emergency Numbers and Expat Support Centers
Final word
Preparedness in Japan is practical and doable. Start with a 3-day kit and one anchored bookshelf. Next month, add your emergency toilet and go to 7 days of water. Turn on alerts, learn 171, and keep your plan simple. Small steps—done now—create real safety for you and your family.
Internal links you can add next across the site:
Setting Up Utilities in Japan: Electricity, Gas, Water & Internet · Renting an Apartment in Japan · Cost of Living in Japan 2025 – Expenses Breakdown · Japanese SIM Card and Internet Guide · Moving Companies in Japan: How to Hire Movers as an Expat · Buying Property in Japan · Trash and Recycling Rules in Japan · Watching TV in Japan · Finding International Groceries in Japan · Biking in Japan: Rules and Rentals · Expat Communities in Japan
Disclaimer
This article is for general informational purposes only and does not constitute professional advice. Laws, prices and regulations vary by location and change over time. Consult a qualified professional for guidance on your specific situation.
