Three years ago, I experienced a magnitude-4 earthquake while sleeping in a Tokyo hotel.
The bed shook up and down. It was a kind of shaking I'd never felt before.
But what scared me more was that during those 30 seconds, I had no idea what to do.
Should I get out of bed? Run outside? Take the elevator? My head spun with thoughts but had no answers.
Thankfully that quake passed without damage, but since then I've made a habit of learning earthquake response before every Japan trip.
Japan has about 1,500 felt earthquakes per year. Most are small, but magnitude-5+ quakes still happen 1-2 times annually on average.
"Hopefully I won't hit a big one" isn't a plan. Being prepared is the plan.
So in this guide, I'm covering Japan's seismic intensity system, situational response, must-have apps and emergency contacts, tsunami protocols, and pre-trip preparations.
Read this once, and you'll handle a real crisis with composure.
📑 Table of Contents
- How Often Do Earthquakes Actually Happen in Japan
- Earthquake Early Warnings: What That Alarm Means
- Situational Earthquake Response
- Why Tsunamis Are Actually Scarier
- Apps You Must Install
- What to Check at Hotel Check-In
- What to Do After the Shaking Stops
- Embassy and Consulate Contacts
- Earthquake Preparedness Kit
- Pre-Trip Earthquake Preparedness Checklist
🌐 How Often Do Earthquakes Actually Happen in Japan
Japan is one of the most seismically active countries in the world. Knowing the data changes your mindset.
| Item | Detail |
|---|---|
| Annual earthquakes | About 1,500 (felt ones) |
| Magnitude 5+ quakes | 1-2 per year on average |
| Most quakes | Magnitude 3 or below, barely noticeable |
| Highest-risk regions | Tohoku, Sea of Japan coast, Kanto |
| Lower-risk regions | Parts of Kyushu, Okinawa |
💡 Understanding Japan's Seismic Intensity Scale
Unlike the Richter magnitude (M) used elsewhere, Japan uses the Shindo (Seismic Intensity) scale with 10 levels from 0 to 7.
| Shindo | Sensation | Response |
|---|---|---|
| 0-2 | Barely felt | Continue normally |
| 3 | Slight shaking | Check surroundings |
| 4 | Clear shaking | Lower stance |
| 5-lower | Furniture shakes | Take protective position |
| 5-upper | Furniture falls | Immediate evacuation stance |
| 6-lower to 6-upper | Hard to stand | Protect head |
| 7 | Forced movement, structural damage | Survival priority |
Shindo 4+ is genuinely jarring for first-time visitors. From Shindo 5-lower, you need to take full evacuation stance.
💡 Where and When Earthquakes Hit
- Kanto (Tokyo area): Ongoing risk of capital-direct quake
- Tohoku: Still in the 2011 Great East Japan Earthquake zone
- Nankai Trough: A major quake is expected within 30 years (includes Osaka, Kyoto)
- Timing: No seasonal pattern, can occur anytime
I used to think, "If I'm unlucky enough to be there during an earthquake, oh well."
Then I saw the numbers. Going to Japan and feeling no earthquake is the lucky outcome.
📱 Earthquake Early Warnings: What That Alarm Means
If your phone goes berserk and the TV blasts an alarm sound in Japan, that's an Earthquake Early Warning (EEW).
🚨 What an EEW Is
- Issued by Japan Meteorological Agency
- Triggers for predicted Shindo 4+ shaking
- Sends out seconds to tens of seconds before the main shaking arrives
- Auto-broadcasts via TV, radio, and all mobile phones
- A unique alarm chime makes it instantly recognizable
💡 What to Do the Instant You Hear It
Time is short. Move on instinct.
- Lower stance, protect your head
- Get under sturdy objects (tables, desks)
- Move away from windows and glass
- Turn off gas/electricity if actively using them (only if safe)
💡 If You Didn't Hear the Alarm
Tourists' foreign phones might not receive the alert. So:
- Install Safety Tips app (offers English) is essential
- Keep data roaming or SIM active
- Keep pocket Wi-Fi charged
I had a Korean phone in Japan and the alarm did come through on the local network, but for guaranteed coverage, Safety Tips is the answer.
⚠️ Tsunami Warning (Different Alarm)
- Issued by JMA about 3 minutes after an earthquake
- If shaking lasts more than 1 minute, that's a tsunami danger signal
- Start moving to higher ground immediately
🎯 Situational Earthquake Response
The same earthquake calls for different responses depending on where you are.
🏨 In Your Hotel Room
1️⃣ Drop immediately
- Get to the floor next to the bed
- Use pillows/blankets to protect your head
2️⃣ Wait for shaking to stop
- Open the door if possible (door may jam after quakes)
- Stay clear of furniture (objects falling)
3️⃣ Put on shoes once shaking stops
- Broken glass and debris everywhere
- Never go barefoot
4️⃣ Use the stairs
- Never the elevator
- Follow staff instructions
🛒 In Shopping Malls or Department Stores
- Avoid narrow aisles between shelves
- Move toward pillars or walls
- Watch for falling objects overhead (lights, signs)
- Lower stance and wait
- Follow staff direction after shaking
🚇 On Subways or Trains
- Japanese trains have automatic stop systems
- Hold the strap or seat firmly, lower center
- Bend your head down if seated
- Never force the doors open
- Wait for conductor announcements (Japanese, then English)
🚌 On Buses or Taxis
- Hold handrails/seats firmly
- Follow driver instructions
- Exit only after the vehicle stops
🍽️ At Restaurants
- Get under the table (a sturdy one)
- Watch for dishes and hot food
- At hot-food restaurants, sometimes exiting quickly is safer
🚶 On the Street
- Move away from building walls and signs
- Stay clear of vending machines
- Protect your head with a bag
- Head to parks or open plazas
🏊 At the Beach
- Shaking lasting over 1 minute = tsunami danger signal
- On foot is faster and safer than driving
- Get to the nearest high ground or upper floor of a building immediately
- Never head toward the shore
🎢 At the Airport
- Move away from glass and hanging signs
- Lay your suitcase down against a wall (it becomes a shield)
- Wait for staff instructions
I once felt a small earthquake in Tokyo's Shinjuku Station, and the passengers were so calm I felt out of place. Japanese people train for this from childhood.
🌊 Why Tsunamis Are Actually Scarier
Often the tsunami after an earthquake causes more damage than the quake itself.
🌊 Tsunami Dangers
- 2011 Great East Japan Earthquake: ~20,000 deaths, mostly from tsunami
- Tsunami heights reached 16.7m (height of a 3-4 story building)
- Travels at hundreds of km/h
- It keeps coming in waves — the first isn't necessarily the largest
⚠️ Signs of a Tsunami Threat
1️⃣ Shaking lasting over 1 minute
The 2011 shaking lasted about 3 minutes
2️⃣ Long shaking even when weak
A distant large quake can produce weak shaking but high tsunami risk
3️⃣ Sudden retreat of the water at the beach
The sea pulls back unusually far → tsunami imminent
4️⃣ Official tsunami warning
Issued within about 3 minutes of the earthquake
🏃 Tsunami Evacuation Rules
- Start immediately (go up, not far)
- On foot beats car (roads block up)
- Head to the nearest high ground or upper floors of concrete buildings
- Don't think "this is high enough" — go higher
- Don't come down until the warning is lifted
🚫 High-Risk Areas (Earthquake = Tsunami Risk)
- Pacific coast (Tohoku, Kanto, Tokai)
- Coastal cities (Kamakura, Miyazaki, Shizuoka, etc.)
- Island regions (Izu, Okinawa, etc.)
💡 Lower-Risk Inland Cities
Japan destinations with minimal tsunami concerns:
- Kyoto (inland, basin)
- Nara (inland)
- Matsumoto (mountain)
- Takayama (mountain)
📲 Apps You Must Install
Download these before you fly. Once in Japan, it's too late.
🥇 Safety Tips (Must-Have #1)
- Free official app from Japan Tourism Agency
- 15 languages including English
- Earthquake early warnings, tsunami alerts, weather warnings
- Evacuation flow charts
- Emergency phrases
- Built specifically for foreign visitors
🥈 NHK WORLD-JAPAN (Must-Have #2)
- App from Japan's public broadcaster NHK International
- Alerts for Shindo 5-lower or greater
- Tsunami warnings, breaking news
- 19 languages including English
- #1 in trustworthiness
🥉 Yurekuru Call
- Specialized earthquake early warning app
- Countdown display (seconds until shaking arrives)
- iPhone and Android supported
- Japanese interface but intuitive
🌟 Yahoo! Bousai-Sokuho
- Yahoo Japan's comprehensive disaster app
- Integrated earthquake, typhoon, flood alerts
- Mostly Japanese but alerts are intuitive
💡 Recommended Combo
- Safety Tips + NHK WORLD = minimum setup
- For extra safety: + Yurekuru
For my Tokyo trip I installed Safety Tips and NHK WORLD, and both worked well. NHK is faster, Safety Tips is more user-friendly in English.
🏨 What to Check at Hotel Check-In
A 30-second investment after check-in pays off.
✅ Check at Check-In (30 seconds)
1️⃣ Emergency evacuation route
- Floor plan posted inside the door
- Trace path from room to emergency stairs
- Usually at least 2 routes
2️⃣ Emergency staircase location
- Next to the elevator or at hallway end
- Actually walk to it once
3️⃣ Nearby evacuation shelter location
- Ask hotel staff
- Usually nearest school or park
- "Hinanjo (避難所) wa doko desuka?" = "Where is the shelter?"
4️⃣ Flashlight location
- Most hotels stock emergency flashlights
- Usually by bed or in desk drawer
💡 Extra Room Setup
- Keep shoes by the bed (slip on instantly)
- Keep passport accessible (must bring during evacuation)
- Keep a water bottle (in case of supply cut)
- Pack a small grab-bag (wallet, passport, phone)
💡 Room Floor Selection
- Lower floors (1-5): faster evacuation
- Higher floors feel more shaking
- But avoid ground floor in tsunami zones
I spent 5 minutes checking the emergency stairs at my Tokyo hotel.
Those 5 minutes can really matter.
📋 What to Do After the Shaking Stops
The shaking ending isn't the end.
✅ Just After the Shaking (1-10 minutes)
1. Check for injuries
- Yourself and companions
- If injured, call 119 (Japan)
2. Put on shoes
- Broken glass and debris everywhere
- No bare feet
3. Secure exit
- Keep the door open (aftershocks can jam it)
- Prepare to use emergency stairs
4. Gas and electricity
- Hotel staff handle this
- If possible, unplug appliances too
🚪 Begin Evacuation
1. NEVER take the elevator
- Aftershocks can trap you
- Use the stairs
2. Protect your head
- Cover with bag or cushion
- Many falling objects
3. Follow guidance
- Hotel staff direction first
- Follow others (usually safe)
4. Minimize luggage
- Passport, cash, phone only
- Don't waste time packing
⏰ Aftershock Watch (24 hours)
Aftershocks can continue for days after the main quake.
- Small tremors after the main shock
- Weakened buildings can collapse from even small aftershocks
- Assume no shaking-free 24 hours
📡 Information Check
- NHK WORLD app for real-time info
- Twitter (X) Japan trends
- Hotel lobby TV
- Beware of rumors — trust only official sources
🏠 Know Your Shelter
- Usually elementary/middle schools or parks
- "Hinanjo (避難所)" in Japanese
- If the hotel is safe, stay there
📞 Embassy and Consulate Contacts
This really matters. One phone call can change everything in a crisis.
🇺🇸 US Embassy in Japan (Tokyo)
- Main: +81-3-3224-5000
- After-hours emergency: +81-3-3224-5000
- Hours: Weekdays 8:30-17:30
🇬🇧 UK Embassy in Japan (Tokyo)
- Main: +81-3-5211-1100
🇦🇺 Australian Embassy in Japan (Tokyo)
- Main: +81-3-5232-4111
🇨🇦 Canadian Embassy in Japan (Tokyo)
- Main: +81-3-5412-6200
🚨 Japan Emergency Numbers
- Police: 110
- Fire/Ambulance: 119
- Coast Guard: 118
- Disaster Hotline: 171 (well-being confirmation)
💡 What to Save in Advance
- Your embassy + nearest consulate number
- Japan 119, 110
- Save in your phone contacts before departure
I didn't memorize the embassy number, but I saved it under "Embassy" in contacts. There's no time to Google during a crisis.
🎒 Earthquake Preparedness Kit
Add these to your usual Japan packing list.
🆘 Small Emergency Bag
Keep a small bag in your hotel room:
- Passport copy (original on you)
- Cash about ¥10,000-20,000
- Phone charger + power bank
- Mask, wet wipes
- 500ml water
- Snacks (energy bars, chocolate)
- Small flashlight (or phone light)
- Whistle (for rescue signaling)
👕 Clothing Tips
- Sneakers for long walking are essential
- Light jacket (in case of nighttime evacuation)
- Consider sleeping in comfortable clothes in higher-risk areas
💊 Medications
- Regular prescriptions (blood pressure, diabetes, etc.)
- Pain relievers, antacids
- Band-aids, antiseptic
- Emergency N95 masks
📋 Document Prep
- Travel insurance certificate (printed + phone)
- Passport copies (split between luggage and bag)
- Flight and reservation printouts
- Family emergency contacts on paper
💡 Travel Insurance Check
- Verify natural disaster coverage
- Trip modification coverage
- Medical coverage limit
- Must get before departure
📋 Pre-Trip Earthquake Preparedness Checklist
✅ Safety Tips app installed + location set
✅ NHK WORLD-JAPAN app installed + notifications on
✅ Phone earthquake alerts enabled
✅ Data roaming or Japanese SIM ready
✅ Power bank + charger packed
✅ Your embassy + nearest consulate numbers saved
✅ Japan emergency numbers (110, 119, 118) saved
✅ Travel insurance with natural disaster coverage
✅ Passport copy + digital backup
✅ Emergency bag prepped (cash, flashlight, mask)
✅ Family emergency contacts on paper
✅ Check hotel emergency exits after check-in
📚 Official Resources
For Japan earthquake preparedness, check these official sources.
JNTO's Safety Tips page has earthquake early warnings and tsunami protocols clearly laid out, and the US State Department covers emergency contacts and consular assistance. Worth a look before you fly.
🌐 When the Ground Shakes, Stay Calm
Earthquakes in Japan can happen anytime, but with preparation, you can absolutely handle them.
- Apps → Safety Tips + NHK WORLD are essentials
- Posture → Lower stance, protect head, under sturdy furniture
- Evacuation → No elevator, stairs only, shoes required
- Tsunami → Shaking over 1 minute = head to high ground immediately
- Contacts → Embassy and emergency numbers saved
The first time I felt an earthquake, it was genuinely terrifying.
But ever since, installing apps, packing an emergency bag, and checking exit routes have become habit.
Once you prepare, you naturally relax into the trip.
Before your next Japan trip, give this guide one more read.
The difference between the prepared and unprepared traveler is decided in those 30 seconds of shaking.
On a Japan trip, safety comes first, memories second.