Disaster Preparedness with a Baby in Japan: Earthquakes, Typhoons & Evacuation

May 31, 2026 Maternity Prep Navigator Editorial ~12 min read

Japan experiences earthquakes, typhoons, and heavy rain every year. For families with young babies or pregnant women, disaster preparedness takes on extra importance — from stocking the right supplies to knowing where your nearest shelter is and how to get alerts in your language. This guide walks through the practical steps that matter most for foreign families living in Japan.

1. Why Disaster Preparedness Matters in Japan

Earthquakes

Japan sits on a geologically active part of the world and experiences earthquakes of varying magnitudes as a regular feature of daily life. Minor tremors are common, and stronger earthquakes occur in different parts of the country from time to time. The Japanese government, municipalities, and public institutions place significant emphasis on earthquake preparedness — you will find earthquake drills, hazard maps, and alert systems built into daily public life as a result. For families new to Japan, understanding this context is the first step toward practical preparedness.

Typhoons and heavy rain

Japan's typhoon season runs roughly from summer through autumn, and heavy rain events — sometimes accompanied by river flooding and landslides — can also occur outside of typhoon season. Unlike earthquakes, typhoons generally come with advance warning, which means there is usually time to prepare and, if necessary, evacuate before conditions become dangerous. Monitoring official weather alerts and knowing your local hazard map are the foundations of typhoon preparedness.

Why babies and pregnant women need specific planning

Babies and pregnant women have needs that go beyond the standard adult emergency checklist. Babies require kami omutsu (紙おむつ — disposable diapers), formula or breast milk, and warm, dry conditions in ways that adults do not. Pregnant women may need to manage medication, stay in contact with their midwife or obstetrician, and consider mobility limitations. Planning specifically for these needs — rather than assuming a general emergency kit will cover everything — makes a significant practical difference.

2. Emergency Supply Checklist for Babies and Pregnant Women

How much to stock

A commonly cited general guideline in Japan is to have at least three days' worth of supplies, with seven days or more considered more resilient against extended disruptions. However, the recommended amount and specific items vary by municipality — check with your local government for any guidance specific to your area. The following checklist covers the categories most relevant to families with babies and pregnant women.

For babies

• Diapers (kami omutsu — 紙おむつ): Enough for at least three to seven days based on your baby's current usage. Rotating stock regularly (see rolling stock method below) keeps supplies fresh.
• Baby wipes (oshirifuki — おしりふき): Multiple packs. Useful not just for diaper changes but for general cleaning when water access is limited.
• Formula and/or breast milk storage: If your baby uses formula, keep a sufficient supply and consider including ready-to-feed liquid formula packs, which require no preparation and are practical in an emergency. If you are breastfeeding, note that stress and disruption can temporarily affect supply — keep this in mind and consult a lactation consultant or midwife if needed.
• Baby food (rinyuu shoku — 離乳食): For babies who have started solid foods, stock pouched or jarred baby food appropriate for your baby's current stage.
• Bottles, sterilized if your baby uses them, and a bottle brush.
• Changes of clothing: At least three to five sets, including warm layers appropriate for the season.
• Baby carrier (dakkohimo — 抱っこ紐): A hands-free carrier is more practical than a stroller when evacuating on foot, navigating crowded shelters, or moving through debris.
• Baby thermometer (taionkei — 体温計): Monitoring temperature is important if a baby shows signs of illness.
• Any current medications your baby is taking, plus a note from your pediatrician if applicable.
• A small comfort item (familiar toy or blanket) to help calm the baby in an unfamiliar environment.

For pregnant women

• Maternal and Child Health Handbook (boshi kenkou techou — 母子健康手帳): Keep both the original and a photocopy. The handbook contains medical history, blood type, vaccination records, and pregnancy information that medical staff will need if you require care away from your regular clinic.
• Any prescribed medications, with at least several days' extra supply if possible. Note the medication names, dosages, and prescribing clinic.
• Health insurance card (hoken shou — 保険証): A photocopy is useful if the original is inaccessible.
• Maternity pads and sanitary items appropriate for your current stage of pregnancy or postpartum recovery.
• Contact information for your midwife, obstetrician, and hospital, written on paper (do not rely solely on your phone).
• Comfortable, supportive footwear that allows for safe movement, including on uneven ground.
• A simple note describing your pregnancy stage and any known conditions, in Japanese if possible, to assist medical staff or shelter workers.

General household supplies

• Drinking water: a general guideline is 2 liters per person per day; confirm your municipality's recommendations.
• Non-perishable food for adults (rice, retort pouches, crackers).
• Flashlights and spare batteries, or a hand-crank/solar lantern.
• Portable radio for receiving official broadcasts.
• First aid basics: bandages, antiseptic wipes, adhesive bandages. For any injury or health concern, call emergency services (119) or consult a medical professional — see Emergency Contacts in Japan.
• Spare cash in small denominations (electronic payments may not work during a disaster).
• Warm blankets or emergency thermal sheets for each family member.

3. Building Your Emergency Go-Bag

What to keep in the go-bag

A hijou mochidashi bukuro (非常持ち出し袋 — emergency go-bag) is a pre-packed bag kept ready near the exit so you can grab it and leave quickly. For families with a baby, this typically means at least two bags: one for adults (documents, valuables, water, essentials) and one for the baby (diapers, formula, a change of clothes, the baby carrier). Key items to include:

• Copies of important documents (see the section on foreign resident documents below)
• Cash in small bills and coins
• Phone charger and a portable battery pack
• One to two days' supply of diapers, wipes, and formula (the rest of your stock can be kept at home as a second line of supplies)
• At least one change of clothing per person, including the baby
• Baby carrier
• Medications and health handbook copies
• A small flashlight
• Water (one bottle per person is manageable; the rest of your three-day supply can stay at home)

The rolling stock method

Rotating your supplies — sometimes called "rolling stock" — means using your stored supplies in daily life and replacing them as you go, rather than letting them sit unused until they expire. This approach works particularly well for diapers, formula, baby wipes, and non-perishable food. The practical result is that your emergency stock stays fresh without requiring periodic inspection or disposal of expired items.

Keeping the go-bag accessible

Store your go-bag near the front door (genkan — 玄関) so it can be grabbed quickly. If you live in an apartment building, also think through your evacuation route and ensure you know the fastest way to the building exit and the street. Avoid storing the bag in a location that would be difficult to access if, for example, furniture fell or a door was blocked.

4. Evacuation: Finding Your Shelter and When to Leave

Finding your designated evacuation shelter

In Japan, each municipality designates evacuation shelters (hinanjo — 避難所) — typically schools, community centers, or other public buildings — for use during disasters. Your nearest shelter depends on where you live and the type of disaster. The most reliable way to find your designated shelter is through your municipality's hazard map and evacuation map, which are available on your local government's website and in printed form from the municipal office.

Shelter locations and capacities are specific to each municipality and can change. Always check the official version from your local government rather than relying on a general list or third-party source.

Welfare evacuation shelters

Some municipalities designate fukushi hinanjo (福祉避難所 — welfare evacuation shelters) that are set up to accommodate people who need special support, including pregnant women and families with very young babies. However, availability, eligibility criteria, and how to access them vary significantly by municipality. Contact your local government in advance to understand whether this option exists in your area and what the procedures are — do not assume you can simply arrive at one during a disaster without prior registration or referral.

Warning levels and when to evacuate

Japan uses a five-level emergency warning system for weather-related disasters. The levels are issued by municipalities based on hazard conditions and trigger recommended or mandatory actions:

• Level 3: Older adults and others requiring support are advised to evacuate (koureisha tou hinan — 高齢者等避難).
• Level 4: All residents in the designated area are advised to evacuate (hinan shiji — 避難指示). This is the level at which most households should move to their designated shelter.
• Level 5: Disaster is occurring or imminent (kinkyuu anzen kakuho — 緊急安全確保). Prioritize your own safety — if you have not yet evacuated, it may be safer to move to a higher floor within your building rather than going outside.

For families with a baby or a pregnant woman, it is generally advisable to act earlier rather than waiting for the highest warning level. Evacuating with a baby takes more time than evacuating alone, and doing so before conditions deteriorate is both safer and less stressful. Always follow official guidance from your municipality and the Japan Meteorological Agency.

Shelters and babies: practical considerations

Evacuation shelters in Japan are typically large shared spaces — school gymnasiums and similar facilities. For families with babies, a few things to keep in mind:

• Noise, different routines, and unfamiliar environments can be distressing for babies. Bring familiar comfort items.
• Ask shelter staff about designated spaces for families with babies or young children — some shelters have partitioned areas or quieter rooms.
• Breastfeeding in a crowded shelter can be difficult. A nursing cover or wrap can help if you prefer privacy.
• Diaper disposal arrangements vary by shelter — ask shelter staff on arrival about where to dispose of used diapers.
• If your baby has specific medical needs, inform shelter staff as soon as you arrive.

5. Staying Informed: Alerts and Multilingual Resources

J-Alert

J-Alert is Japan's national emergency warning system. It sends automatic alerts via television, radio, outdoor speakers, and mobile phones for events including earthquakes, tsunamis, and severe weather. The mobile alerts come through a loud siren-like sound on Japanese smartphones, even when the phone is set to silent. This system operates automatically — no app download is required — as long as your mobile phone is connected to a Japanese carrier network. If you receive a J-Alert on your phone, follow the on-screen instructions or turn on a TV or radio for information from NHK or your local broadcaster.

Japan Meteorological Agency

The Japan Meteorological Agency (kishouchou — 気象庁) publishes weather warnings, typhoon track forecasts, and earthquake information in Japanese on its website. An English-language version is also available at the JMA website. For real-time typhoon and heavy rain monitoring, the JMA is the authoritative official source.

NHK World and multilingual information

NHK World provides English-language news and disaster information. During major disaster events, NHK broadcasts multilingual information and updates. Your local municipality may also publish disaster-related information in English and other languages — check whether your city or ward office has a multilingual disaster information page or mailing list. Many municipalities offer disaster email notification services that you can register for to receive alerts directly.

Multilingual disaster support for foreign residents

Several organizations and government-supported services provide disaster information and support in multiple languages for foreign residents in Japan. Your local international affairs office or kokusai kouryuu kyoukai (国際交流協会 — international exchange association) is often the most practical starting point. Larger cities typically have multilingual support services; some are available by phone. Check what is available in your municipality before a disaster occurs, so you know where to turn for support if needed.

6. Extra Steps for Foreign Residents

Documents to prepare copies of

Foreign residents in Japan should keep photocopies (or digital copies stored securely offline) of key documents, as originals may be inaccessible or damaged during a disaster:

• Passport (including any recently issued pages and entry stamps)
• Residence card (zairyuu kaado — 在留カード)
• Health insurance card
• Maternal and Child Health Handbook (boshi kenkou techou), or a photocopy of key pages
• Any medication prescriptions and records
• Bank account and emergency contact information

Store document copies in your go-bag and, if possible, leave a set with a trusted person or in a secure cloud location that can be accessed from any device.

Embassy and consulate contacts

Know how to contact your home country's embassy or consulate in Japan. Embassies may communicate with their nationals during a major disaster to provide guidance or assistance. Register with your embassy's citizen registration service if one is available — this allows the embassy to contact you in an emergency. Keep the embassy's emergency phone number written on paper in your go-bag.

Easy Japanese and shelter communication

Japanese-language communication at an evacuation shelter can be challenging if your Japanese is limited. A few practical approaches:

• Prepare a simple card in Japanese (and your home language) noting: your name, your baby's name and age, any medical conditions, your languages, and that you may need language support.
• Learn a few key phrases in Japanese for the shelter context. For example: "Please help me. I do not understand Japanese." — Tasukete kudasai. Nihongo ga wakarimasen. Or: "My baby needs formula." — Akachan ni miruku ga hitsuyou desu.
• "Easy Japanese" (yasashii nihongo — やさしい日本語) is a simplified form of Japanese used in some municipal communications and shelter announcements specifically to help non-native speakers follow key instructions.
• Some municipalities have multilingual volunteers or staff at shelters during large disasters — ask shelter staff (or a fellow evacuee) whether language support is available.

Registering with your municipality

Confirm that you are properly registered at your local municipal office (shiyakusho — 市役所 or kuyakusho — 区役所). This is important because municipal disaster notifications, evacuation maps, and welfare shelter eligibility are often tied to your registered address. If you have recently moved, update your registration promptly. Some municipalities also maintain a voluntary registry (避難行動要支援者名簿) for residents who may need assistance evacuating — ask your municipal office if this applies to your situation.

7. Home Safety and Furniture Anchoring

Furniture anchoring for earthquake safety

In an earthquake, unsecured tall furniture — bookshelves, wardrobes, refrigerators, chests of drawers — can tip over and cause serious injury. Securing furniture with wall anchors (tentou boushi kagu koteiki — 転倒防止家具固定器) is one of the most practical earthquake-preparedness steps you can take at home. This is particularly important in rooms where babies sleep or spend time. For detailed guidance on furniture anchoring and other hazards specific to Japanese homes, including genkan steps, tatami rooms, and balcony safety, see our guide: Childproofing Your Japanese Home: Safety Tips for Foreign Parents.

Baby's sleep space and earthquake preparedness

If possible, position your baby's cot or sleep space away from tall furniture, windows, and items that could fall. In the event of a sudden earthquake, the priority is to protect your baby from falling objects. Keep a flashlight within reach of the baby's room, as earthquakes can occur at night and power outages are possible. Review the layout of your home with this in mind, particularly in rooms where your baby sleeps or spends extended time.

Apartment buildings and housing type considerations

Japan has specific construction standards for earthquake resistance. Buildings constructed under post-1981 seismic standards (shin taishin kijun — 新耐震基準) generally perform differently in earthquakes than older structures, though the specific performance of any building depends on many factors. For practical information about housing considerations for families with babies in Japan, including rental tips and what to look for in an apartment, see our guide: Housing in Japan with a Baby: Renting, Space and Baby-Friendly Considerations.

8. FAQ

How do I find my nearest evacuation shelter in Japan?

The most reliable method is to check your municipality's official hazard map and evacuation shelter map. These are available on your local government's website, at the municipal office in printed form, and sometimes through the municipality's official app. Shelter designations are specific to your registered address and the type of disaster — search for your city or ward name plus "hazard map" or "hinanjo" to find the relevant page. Confirm in advance rather than trying to find this information during a disaster.

What is a welfare evacuation shelter (fukushi hinanjo) and can I use one?

A fukushi hinanjo (福祉避難所) is a type of designated shelter intended for people who need special support, which can include pregnant women and families with very young babies in some municipalities. However, eligibility, availability, and how to access one vary significantly between municipalities. Some require prior registration; others operate on a referral basis from the main shelter. Contact your local government in advance to ask whether this applies to your area and what the procedure is. Do not assume you can arrive at one directly during a disaster without prior arrangement.

Do J-Alerts work on foreign mobile phones in Japan?

J-Alert notifications are sent via Japanese carrier networks. If your phone is connected to a Japanese mobile network (including a SIM card from a Japanese carrier), you should receive the alerts. If you are using a foreign SIM card in Japan, you may or may not receive J-Alert notifications depending on the carrier and your roaming settings. To ensure you receive alerts, consider having a Japanese SIM or a Japanese SIM card for emergency use. You can also receive disaster information via NHK World, NHK radio, and your municipality's email alert service regardless of your phone setup.

Is it safe to shelter in place during an earthquake?

General earthquake safety guidance in Japan includes: take cover under a sturdy table or desk, move away from windows and tall furniture, and do not rush outside during shaking. After the shaking stops, assess the situation before moving. If you are in a building and there is no immediate structural danger, sheltering in place while assessing the situation is often appropriate. Official guidance from your municipality and the Japanese fire department may be specific to your type of building and local conditions. For fires, gas leaks, or other immediate hazards after an earthquake, evacuate and call 119. For emergency procedures and when to call 119 or 110, see Emergency Contacts and Calling an Ambulance in Japan.

What should I do if I go into labor during a disaster evacuation?

If you are pregnant and have concerns about labor or any pregnancy-related health issue during a disaster, contact emergency services (119) and inform them that you are pregnant. At a shelter, inform shelter staff and medical volunteers of your pregnancy and stage. If you have a written note from your obstetrician or midwife with relevant medical information, keep it in your go-bag. Your midwife or obstetrician may also have guidance specific to your pregnancy — it is worth asking about their recommended approach in an emergency before the situation arises.

Should I evacuate if I live on a high floor and there is a typhoon warning?

Whether to evacuate depends on the specific hazard involved, your building type, your floor, and the official warning level for your area. River flooding and landslide hazards may require evacuation even for residents of high-rise buildings in certain zones; strong wind and rain hazards may make sheltering in place safer. The key is to check your municipality's hazard map in advance to understand which hazards apply to your specific address, and to follow the warning level guidance from your municipality. At Level 4, evacuation is advised for all households in the designated area. Always follow official guidance rather than making an independent assessment based on general advice.

9. Related Resources