Japan is one of the most seismically active countries on Earth — the Japanese archipelago sits at the intersection of four tectonic plates, and the country experiences roughly 1,500 earthquakes every year. For foreigners living in or visiting Japan, understanding what to do before, during, and after an earthquake is not optional: it’s essential. This comprehensive guide covers everything you need to know in 2026.

Understanding Japan’s Earthquake Risk

Japan experiences about 10% of the world’s major earthquakes. The three most seismically active zones relevant to foreigners in Japan are:

Tokyo Metropolitan Area (Kanto Region): The Tokyo Inland Earthquake (首都直下地震) is one of the most anticipated disaster events globally. Scientists estimate a 70% probability of a M7+ earthquake hitting the greater Tokyo area within the next 30 years.

Nankai Trough (Pacific Coast): A megaquake of M8–9 class is considered inevitable along this underwater fault stretching from Shizuoka to Kyushu. The last major event was in 1946; historical cycles suggest the next could occur within 10–30 years.

Hokkaido and Northern Japan: The 2018 Hokkaido Eastern Iburi earthquake (M6.7) caused widespread landslides and blackouts, highlighting vulnerabilities in rural northern areas.

Japan’s Earthquake Warning System (緊急地震速報)

Japan operates one of the world’s most advanced earthquake early warning systems. The Emergency Earthquake Bulletin (EEW) is broadcast seconds before shaking begins via:

• Your smartphone: All mobile phones in Japan (including foreign SIM cards) automatically receive J-ALERT emergency broadcasts. You’ll hear a distinctive alarm tone before an earthquake hits.

• Television and radio: All channels immediately switch to earthquake coverage.

• Public address systems: Sirens and announcements in public spaces, stations, and shopping malls.

Critical point: When you hear the emergency alarm, you typically have 10–60 seconds before shaking begins. Use those seconds — don’t freeze.

Japan’s Seismic Intensity Scale (震度 / Shindo)

What To Do DURING an Earthquake

If You’re Indoors

Drop, Cover, and Hold On. This is the universally recommended action:

1. DROP to your hands and knees immediately. This prevents you from being knocked over.

2. COVER your head and neck with your arms. If possible, get under a sturdy desk or table — move with it if it shifts.

3. HOLD ON until the shaking stops. Earthquakes can last 30 seconds to 3 minutes.

Do NOT: Stand in doorways (a myth from older construction eras), run outside during shaking, or use elevators immediately after an earthquake.

If You’re in a Modern Japanese Building

Buildings constructed after 1981 in Japan must meet the New Seismic Standard (新耐震基準) and buildings after 2000 meet even stricter codes. Most modern apartment buildings and offices in major cities are designed to survive M7+ earthquakes. Trust the building — don’t run outside.

If You’re Outside

Move away from buildings, utility poles, and walls. Look up and protect your head from falling debris. In coastal areas, immediately move to higher ground after the shaking stops — don’t wait for official tsunami warnings.

If You’re on the Tokyo Subway

Hold firmly to handrails and brace against your seat. Trains automatically stop when significant seismic activity is detected. Follow crew instructions — Japanese train staff are extensively trained for earthquake response. Do not attempt to exit the train or use emergency exits while the train is in a tunnel.

Tsunami Risk: The Critical 10-Minute Rule

If you’re in a coastal area and experience a major earthquake (strong or prolonged shaking), assume a tsunami is possible and evacuate immediately — don’t wait for official warnings. The first tsunami wave can arrive in as little as 5–15 minutes after an offshore quake.

Look for blue tsunami evacuation signs (津波避難場所) — these are posted throughout coastal towns across Japan. Elevated ground, tsunami shelters, and reinforced concrete buildings above the 3rd floor are your targets.

Essential Apps for Foreigners in Japan

📱 Safety Tips (by JNTO)

The Japan Tourism Agency’s official disaster information app. Provides real-time earthquake, tsunami, heavy rain, and volcanic eruption alerts in English, Chinese, Korean, Spanish, and more. Download this before you need it.

📱 NHK World Japan

NHK broadcasts English-language emergency news and disaster updates during major events. The app is free and works even on slow mobile connections.

📱 Yahoo! Disaster Alert (Yahoo!防災速報)

Primarily in Japanese but provides location-specific alerts faster than most other apps. Worth having if you’re staying long-term.

📱 Google Maps Offline

Download offline maps of your area before any trip. Cell networks become overloaded during earthquakes; offline maps work without internet.

Your Earthquake Preparedness Kit (非常用持ち出し袋)

Japanese households traditionally prepare a 非常用持ち出し袋 (emergency go-bag). For foreigners in Japan, include:

• Water: 3 liters per person per day, minimum 3-day supply

• Food: Non-perishable snacks, instant noodles (the Japanese stockpile specialty), energy bars

• Passport and residence card copies (keep originals in a waterproof pouch)

• Cash in small bills: ATMs go down after major earthquakes; electronic payments fail. ¥10,000–¥30,000 in cash is recommended

• Phone charger and portable battery

• First aid kit

• Prescription medications (7-day minimum supply)

• Flashlight and whistle (to signal rescuers)

• Emergency contact list in both English and Japanese

• Embassy contact information

Register with Your Embassy

All major countries operating embassies in Japan offer traveler or resident registration programs. In a major disaster, your embassy can:

• Account for your safety

• Assist with emergency evacuation

• Provide emergency passport issuance

• Connect you with welfare officers

Register at your country’s embassy website before disaster strikes. For US citizens: STEP (Smart Traveler Enrollment Program).

Designated Evacuation Shelters (避難所)

Every ward and municipality in Japan designates specific buildings as earthquake evacuation shelters (避難所 — hinanjo). These are typically schools, community centers, and parks. You can find your nearest shelter by:

1. Asking your local ward office (区役所/市役所) for your area’s hazard map

2. Searching on your city’s official website

3. Using the NHK Safety Tips app’s shelter finder

Important for foreigners: Many evacuation shelters are staffed by local volunteers who may not speak English. Download Google Translate with offline Japanese-English capability, and bring a pen and notepad for written communication.

After the Earthquake: What To Do

Immediately after shaking stops:

• Check yourself and others for injuries before moving

• Shut off gas at the meter if you smell gas

• Open doors carefully — frames may be warped and trap you inside

• Exit the building via stairs, not elevators

• Do not use matches or lighters — gas leaks are common

In the hours after:

• Charge your phone immediately if power is still on — outages may follow

• Fill bathtubs with water in case water supply is disrupted

• Listen to NHK World or local radio for official instructions

• Do not use your car — roads must be kept clear for emergency vehicles

• Be prepared for aftershocks — they can be significant and occur for days

Special Note: Foreigner Support at Evacuation Centers

Japan has been actively improving multilingual support at evacuation shelters since the 2011 Great East Japan Earthquake. In 2026, many major cities have:

• Multilingual disaster volunteers (多言語支援センター)

• Simplified Japanese (やさしい日本語) signage alongside English

• Tablet translation devices at major shelters

Tokyo’s disaster prevention website (bousai.metro.tokyo.lg.jp) now operates in English, Chinese, Korean, and several Southeast Asian languages.

Key Japanese Earthquake Vocabulary

Bottom Line: Be Prepared, Not Afraid

Living in or visiting Japan doesn’t mean living in constant fear of earthquakes. The vast majority of earthquakes you’ll experience in Japan are minor — a brief shimmy that sends hanging plants swaying, nothing more. Japan’s building codes, warning systems, and disaster preparedness infrastructure are among the best in the world.

The key is preparation: download the apps, know your nearest shelter, keep a go-bag ready, and register with your embassy. Japan is extraordinarily safe in the day-to-day — and with the right preparation, even a major seismic event doesn’t have to be catastrophic for you personally.

Japan has an earthquake every 5 minutes. In 2024, the Noto Peninsula earthquake killed 703 people. In April 2026, a 7.4-magnitude quake struck off the Sanriku coast. The government predicts a 70% chance of a direct hit on Tokyo within 30 years — and an 80% chance of a Nankai Trough megaquake that could kill 290,000 people.

Most foreigners living in or visiting Japan have no idea what to do. This guide fixes that — in plain English.

Before an Earthquake: Prepare Now (Not Later)

The Emergency Kit You Actually Need

Japanese emergency guidelines recommend a 72-hour kit minimum. Here’s what to pack:

• Water: 4 liters per person per day × 3 days = 12 liters minimum
• Food: Non-perishable items (energy bars, canned goods, instant noodles)
• Documents: Passport, residence card, My Number card copies in waterproof bag
• Medications: 30-day supply of any prescriptions
• Cash: ¥30,000–50,000 in small bills (ATMs may be down)
• Portable toilet bags: Essential for shelter life — Japanese evacuation centers expect you to bring your own
• Flashlight + battery bank: Power outages are common after major quakes
• Warm clothing: Gym floors are cold, especially in winter

Keep your bag near the front door. You may have 30 seconds to grab it.

The Apps That Could Save Your Life

Critical: if your phone wasn’t bought in Japan, it will NOT automatically receive earthquake alerts. Japanese J-Alert uses a satellite-based system incompatible with international phones. Install these now:

• Safety Tips (by JNTO) — 15 languages, government-backed, covers earthquakes, tsunamis, typhoons
• NERV Disaster Prevention App — fastest real-time warnings in Japan, English UI available
• Yurekuru Call — 5 million users, direct JMA data, 10–120 second advance warning
• NHK World App — delivers J-Alert in English

Install at least 2 of these. Enable push notifications. Grant location permissions.

Register With Your Embassy

Most embassies offer emergency SMS alerts for registered citizens. The U.S. Embassy Japan, British Embassy, and Canadian Embassy all have emergency registration systems. It takes 5 minutes. Do it before you need it.

Know Your Evacuation Route

Search “[your area] 避難所” (evacuation shelter) on your city’s website. Tokyo residents can check tokyo.lg.jp. Bookmark it offline.

During an Earthquake: Drop. Cover. Hold On.

When shaking starts, forget everything except three words: Drop. Cover. Hold On.

1. DROP to your hands and knees immediately
2. COVER — get under a sturdy table, or protect your head and neck with your arms if no cover is available. Stay away from windows.
3. HOLD ON — stay in position until shaking completely stops. Do not run outside.

Understanding the Alert Sound

Japan’s Earthquake Early Warning (緊急地震速報) gives you 5–30 seconds of warning before strong shaking arrives. You’ll hear a distinctive alarm from your phone, TV, and public speakers. When you hear it, act immediately — don’t wait to feel the shaking.

After an Earthquake: The First 72 Hours

Immediate Steps (First 30 Minutes)

1. Check yourself and others for injuries. Apply first aid if needed.
2. Check for gas leaks — smell gas? Open windows, don’t flip any switches, leave immediately.
3. Turn on your emergency apps for updates and tsunami warnings.
4. Text rather than call — networks get overloaded, texts usually get through.
5. Charge your phone if power is still on.

Finding an Evacuation Shelter

Japan’s system has two phases: Evacuation Site (避難場所) — an open area safe from fire and structural collapse — and Evacuation Shelter (避難所) — an indoor facility (usually a school gymnasium) for multi-day stays. Official shelters accept all residents regardless of nationality. Show your residence card and follow others.

Reality Check: What Shelters Are Like

No sugarcoating: Japanese evacuation shelters are spartan.

• Hard gymnasium floors with thin mats
• 600+ people in a single gym is normal after a major quake
• Cardboard privacy partitions between families
• Meals are compressed emergency biscuits and bottled water
• Portable toilets become overwhelmed quickly

Multilingual support staff are available at major shelters in urban areas, but availability varies. The Safety Tips app has shelter-finding functionality in 15 languages.

Emergency Japanese Phrases

Emergency numbers: Police 110 | Ambulance & Fire 119

Bottom Line: Should You Be Worried?

Japan is the safest earthquake-prone country on Earth. The building codes are world-class (post-1981 buildings are extremely resilient), the early warning system is the most advanced globally, and emergency services are highly trained. Most earthquakes you experience will rattle your coffee cup, not your life.

But preparedness is what separates “scary story” from “tragedy.” Download the apps today. Pack a kit this weekend. Register with your embassy. It takes 3 hours total and could save your life.