What to do in an earthquake or typhoon in Japan: a visitor's guide
Checked against 29 official sources, most recently on . 9 minute read.
What to know first
If an earthquake early warning sounds, protect your head and stay where you are; don't run outside. On the coast, if the shaking is strong or long, head for high ground at once without waiting for a warning. Typhoons are forecast days ahead, and their main effect on visitors is transport, which operators often suspend in advance.
Next step: Install the Safety Tips app before you fly and allow its notifications. Then read the table below once, so you know the first move wherever you are.
- After a large quake
- Watch for quakes as large as the first for about a weekEspecially in the first two or three days
- Typhoon forecasts
- JMA’s track forecasts run five days ahead
- Japan Visitor Hotline
- 050-3816-278724 hours in English, Chinese and Korean
On this page
If you're here when it happens
Hotel room or other building: Protect your head and shelter under a table. Don't rush outside.
In a lift: Stop the lift at the nearest floor and get out at once.
On a train, shinkansen or subway: Hold on tight to a strap or handrail. If the train stops between stations, follow the crew's instructions and don't try to force your way out.
Station, shop or crowded venue: Follow staff instructions and don't rush for the exit. Watch above and around you for things that could fall.
Outside in town: Watch out for collapsing concrete-block walls, falling signs and broken glass.
Driving: Don't brake suddenly. Turn on your hazard lights, then slow down gently. If you feel shaking while still moving, pull over safely to the left and stop.
Beach, harbour or river mouth: If shaking is strong, or weak but long, go to high ground or a tsunami evacuation building now. Don't return until warnings are lifted.
Typhoon forecast for your area: Check trains, flights and hotel the day before. Stay indoors at the peak; move only once operators confirm services.
Sources: JMA's earthquake early warning leaflet and tsunami guidance, and Tokyo Metro's safety guide.
Sources for this section: JMA, Earthquake Early Warning leaflet (English) · JMA, tsunami warnings and advisories (English) · Tokyo Metro, safety pocket guide, earthquakes (English)
Before you go: set up alerts in five minutes
Safety Tips: a free app supervised by the Japan Tourism Agency, in 15 languages. It pushes earthquake early warnings, tsunami warnings and special weather warnings; its App Store listing adds volcanic, heat-illness and civil protection alerts. It also has an evacuation flowchart and phrase cards to show people. Open it once, pick your language, allow notifications and turn on automatic location (or add the places you'll visit, up to five). It only alerts for the locations set, and for earthquakes expected to reach intensity 4 or more there.
NHK World-Japan: the public broadcaster's free app sends earthquake, tsunami and emergency weather alerts in 11 languages, and its 24-hour English channel covers large events.
JMA multilingual pages (data.jma.go.jp/multi): current warnings and earthquake, tsunami and volcano information in 15 languages.
Japan Safe Travel (@JapanSafeTravel on X): JNTO's disaster and transport updates for visitors.
Japan Visitor Hotline: 050-3816-2787 (+81-50-3816-2787 from abroad), 24 hours in English, Chinese and Korean. It helps in disasters but doesn't dispatch ambulances; for 119 and 110 see Japan emergency numbers and visitor help.
Phones on a Japanese carrier's SIM also get network alerts: carrier au says its earthquake alerts are free, use a dedicated alarm and on some models add a voice saying "Jishin desu" ("Earthquake"). au also notes that, because of network differences, an alert can reach au phones but not other carriers' phones. We found no official guidance on whether phones on a foreign SIM or roaming receive these alerts, so don't count on it: rely on Safety Tips, which works on any phone with data.
Sources for this section: Japan Tourism Agency, disaster information tools for visitors (Safety Tips, Japan Visitor Hotline, Japan Safe Travel, NHK World-Japan) · Safety Tips app page (JNTO/JTA) · Safety Tips, App Store listing · NHK World-Japan app listing · JMA, multilingual disaster information · KDDI (au), earthquake early warning on au phones (Japanese)
What an earthquake early warning means
JMA issues an earthquake early warning (kinkyū jishin sokuhō) when at least two seismic stations detect a quake and JMA expects intensity 5-lower or stronger somewhere (the level at which noticeable damage begins), or strong long-period shaking that sways tall buildings. It names every area expected to get intensity 4 or more. By law NHK must broadcast it at once, so TV and radio interrupt programmes. Radio broadcasts of the warning start with NHK's distinctive chime, which many commercial stations also use, and Japanese phones sound their alarm.
You get seconds, not minutes. Enough to get under a table or away from a window, not to leave the building.
Near the epicentre it may arrive with or after the shaking. If the ground is moving, act anyway.
The broadcast warning gives no countdown or local intensity. It just says "strong shaking", because JMA's estimates can be about one level out. Countdowns in some apps are rough estimates.
JMA's advice is the same in every case: stay calm and protect yourself first, according to where you are.
Sources for this section: JMA, earthquake early warning issuance criteria and legal provisions, incl. NHK's duty to broadcast (Japanese) · JMA, earthquake early warning limitations (Japanese) · JMA, Earthquake Early Warning leaflet (English) · JMA, guidance for EEW-detecting radios (NHK chime at the start of radio broadcasts) (Japanese)
When the shaking stops
Expect more earthquakes. JMA advises watching for quakes as large as the first for about a week, especially in the first two or three days. Keep shoes and your phone by the bed.
At your hotel, wait for announcements, follow staff and don't use the lifts until told they are safe. JNTO notes some hotels and inns also take in evacuees; ask about your accommodation's plan.
Evacuation signs. An evacuation area (hinan basho) is for immediate safety, such as a park, high ground or tsunami tower. An evacuation shelter (hinanjo) is usually a school or community centre where people can stay. Each is designated for particular hazards, and signs under the national standard JIS Z9098 show which (tsunami, flood, landslide, large fire). A site that is fine for an earthquake may not be safe from a tsunami, so read the sign.
In Tokyo, don't set off on foot straight away. The Tokyo Metropolitan Government asks people to stay at a safe location and "refrain from heading home all at once": crowds block emergency vehicles, and long walks right after a big quake are dangerous.
Trains stop, then restart after inspections. Shinkansen seismometers, including some on the seabed, trigger emergency stops (JR East). After a strong quake, inspections can take hours. On the coast, stay on high ground until the tsunami warning is cancelled; JMA warns waves can keep coming.
Sources for this section: JMA, earthquake activity after a large earthquake (Japanese) · JNTO, Safety tips for travelers (disaster tips, shelters, tsunami) · Cabinet Office (Bousai), disaster-type evacuation signs, JIS Z9098 (Japanese) · Tokyo Metropolitan Government, disaster preparedness guide, stranded persons (English) · JR East, Shinkansen earthquake detection with seabed seismometers (Japanese) · JMA, tsunami warnings and advisories (English)
Typhoons: forecasts, planned suspensions and airports
On JMA's 1991–2020 averages, about 11.7 typhoons a year come within 300 km of a Japanese weather station, with August and September the busiest months (3.3 each). Okinawa and Amami see more than the main islands (7.9 a year against 5.8).
Forecasts. JMA's track forecasts run five days ahead. The forecast circle shows where the storm's centre has a 70% chance of being, not how far damage reaches; our weather-disruption guide explains the circle and evacuation alert levels.
Planned suspensions (keikaku unkyū). Rail operators often announce suspensions before a typhoon arrives rather than stopping trains mid-journey. Transport ministry (MLIT) guidance asks them to warn early that a suspension is possible, give information as specific as possible when it goes ahead and when services restart, and say whether substitute transport will run, in several languages and through several channels. Restart times are estimates: lines reopen after safety checks, and the morning after is usually crowded.
Airports. Airlines cancel flights, often in advance, and airport trains and buses can stop too. After Typhoon Faxai in September 2019, passengers were stranded at Narita when road and rail links failed, and an MLIT committee reviewed what went wrong. Your airline handles rebooking or refunds; don't head to the airport until both your flight and your route there are running.
Sources for this section: JMA, typhoon averages 1991–2020 (Japanese) · JMA, typhoon forecast circle and five-day forecast (Japanese) · MLIT, final summary on planned rail suspensions, 2 July 2019 (Japanese) · MLIT, final summary on planned rail suspensions, accompanying document (Japanese) · MLIT, airport natural-disaster committee, main opinions after the 2019 Narita disruption (Japanese)
What to do with your bookings
Trains: an operator suspension is treated differently from choosing not to travel. Start with the ticket issuer: see train cancelled in Japan? Start with the actual ticket issuer.
Hotels: a warning doesn't cancel your booking. If you can't get there, contact the hotel or platform before check-in and get any offer in writing; a refund depends on your booking terms.
Flights: follow the airline's notice for your flight and keep its messages.
Extra costs: extra nights, new tickets and missed tours are an insurance question, and natural-disaster cover varies: see what Japan travel insurance should cover.
Our rule of thumb: keep the day before a typhoon flexible, prefer refundable rooms in typhoon season, and keep every message and receipt.
The Nankai Trough "megaquake advisory"
The Nankai Trough is an undersea plate boundary off central and western Japan. JMA issues Nankai Trough Earthquake Extra Information when the chance of a major quake there is "relatively higher than usual". Media called the August 2024 notice a "megaquake advisory"; the Cabinet Office's English term is Megathrust Earthquake Attention (kyodai jishin chūi).
Attention: after a magnitude 7.0+ earthquake in the monitored area, or unusual slow slip on the plate boundary. People are asked to carry on with normal life and work while rechecking their preparations daily, generally for one week.
Alert (kyodai jishin keikai): after a magnitude 8.0+ earthquake on the plate boundary, for two weeks. Where a tsunami would arrive too fast to escape, people are asked to evacuate in advance for a week; elsewhere, avoid risky places and stay ready.
Neither predicts that a megaquake will happen. The first Attention notice followed a magnitude 7.1 quake off Miyazaki on 8 August 2024, and the special call for caution ended on 15 August at 17:00. The next morning, JR Central was running the Tokaido Shinkansen at reduced speed between Mishima and Mikawa-Anjo, the Fujikawa limited express was suspended and some Izu lines ran slower; Shizuoka Prefecture reported other public transport running normally.
For travellers: an Attention notice is not, by itself, a reason to cancel. Carry on, know your hotel's evacuation route, take tsunami signs seriously on the Pacific coast and allow for slower trains. Under an Alert, follow local instructions and stay away from coastal areas named for advance evacuation.
Sources for this section: JMA, Nankai Trough Extra Information criteria (Japanese) · JMA/Cabinet Office, end of special call for caution, 15 August 2024 (Japanese) · Headquarters for Earthquake Research Promotion, 8 August 2024 Hyuganada earthquake (Japanese) · Cabinet Office (Bousai), Nankai Trough Extra Information: what individuals should do (English) · Cabinet Office (Bousai), Nankai Trough Extra Information multilingual leaflet · Shizuoka Prefecture, transport status, 9 August 2024 07:00 (Japanese)
Worked example: an early warning at 02:00 in a Tokyo hotel
The setting: two travellers asleep on the 10th floor of a Tokyo hotel, with Safety Tips installed and the hotel set as one of their locations. At 02:00 the phone sounds an earthquake early warning; Safety Tips sends one when a quake is expected to reach intensity 4 or more there.
First seconds: they protect their heads and shelter under the desk, away from the window. They don't rush outside: the warning gives seconds, not minutes, and the shaking may arrive with it.
When the shaking stops: shoes on, phone in hand, and they wait for the hotel's announcements. No lifts until staff say they are safe.
The next 7 days: JMA advises watching for quakes as large as the first for about a week, especially in the first 2 or 3 days, so shoes and phones stay by the bed each night.
The morning: trains stop and restart only after inspections, which can take hours after a strong quake. They stay at the hotel rather than setting off on foot, as the Tokyo Metropolitan Government asks. For help in English they call the Japan Visitor Hotline on 050-3816-2787, which answers 24 hours.
Phone lines jammed after a big quake? NTT opens the Disaster Emergency Message Dial (171), a voice message board, only when a disaster strikes.
Bookings: if they can't reach the next night's hotel, they contact the hotel or platform before check-in, get any offer in writing and keep every message and receipt.
Sources for this section: Safety Tips app page (JNTO/JTA) · JMA, Earthquake Early Warning leaflet (English) · JMA, earthquake activity after a large earthquake (Japanese) · Tokyo Metropolitan Government, disaster preparedness guide, stranded persons (English) · Japan Tourism Agency, disaster information tools for visitors (Safety Tips, Japan Visitor Hotline, Japan Safe Travel, NHK World-Japan) · ntt-east.co.jp: How do I let family know I am safe if phone lines are jammed?
Key facts, checked 11 October 2026
Earthquake early warning: issued when at least two seismic stations detect a quake and JMA expects intensity 5-lower or stronger somewhere; it names every area expected to get intensity 4 or more.
After a large quake: watch for quakes as large as the first for about a week, especially in the first two or three days (JMA).
Typhoons: about 11.7 a year come within 300 km of a Japanese weather station (JMA, 1991–2020 averages), with August and September the busiest months (3.3 each).
Typhoon forecasts: JMA's track forecasts run five days ahead; the forecast circle shows where the centre has a 70% chance of being.
Nankai Trough: Attention after a magnitude 7.0+ quake in the monitored area, generally for one week; Alert after a magnitude 8.0+ quake on the plate boundary, for two weeks.
Japan Visitor Hotline: 050-3816-2787 (+81-50-3816-2787 from abroad), 24 hours in English, Chinese and Korean.
We will check these facts again by 8 December 2026.
Sources for this section: JMA, earthquake early warning issuance criteria and legal provisions, incl. NHK's duty to broadcast (Japanese) · JMA, earthquake activity after a large earthquake (Japanese) · JMA, typhoon averages 1991–2020 (Japanese) · JMA, typhoon forecast circle and five-day forecast (Japanese) · JMA, Nankai Trough Extra Information criteria (Japanese) · Japan Tourism Agency, disaster information tools for visitors (Safety Tips, Japan Visitor Hotline, Japan Safe Travel, NHK World-Japan)
Pre-trip checklist
Install Safety Tips and NHK World-Japan; allow notifications
Bookmark JMA's multilingual page; follow @JapanSafeTravel
Save 119, 110 and the Japan Visitor Hotline
Arrange mobile data from arrival (eSIM or SIM)
August–October: refundable rooms, no tight connections on travel days
Check your insurance wording for natural disasters and disruption
On arrival: find your hotel's exits; on the coast, find the nearest high ground
Questions about this guide
Is it safe to visit Japan because of earthquakes?
Most earthquakes in Japan are small and cause no damage; the systems here exist for the rare large one. The risk can't be removed, but preparing takes minutes: install an alert app and learn the table above.
Will I understand an alert if I don't speak Japanese?
Safety Tips and NHK World-Japan alert in English and other languages. A phone alarm or TV chime means the same in any language: protect yourself now.
Should I cancel my trip if a typhoon is forecast?
In our view, rarely the whole trip: disruption is usually to specific days and routes. Watch JMA's forecast from about five days out, move inter-city travel off the peak day and confirm your bookings.
Should I cancel if a Nankai Trough advisory is issued?
An Attention notice asks people to carry on while staying prepared. If you are thinking of cancelling anyway, check whether your insurer treats it as a covered reason; see do I need travel insurance for Japan?.
What if trains stop and I can't reach my hotel?
Stay somewhere safe, such as a station facility, hotel lobby or cafe, tell the hotel early and keep records for any refund or claim. Avoid long walks in a storm or right after a big quake.
Official pages for this guide
The rules in this guide come from the official pages below. Japan, Booked. does not book or submit requests on your behalf.
- Safety Tips app page (JNTO/JTA)
- Japan Tourism Agency, disaster information tools for visitors (Safety Tips, Japan Visitor Hotline, Japan Safe Travel, NHK World-Japan)
- Safety Tips, App Store listing
- JNTO, Safety tips for travelers (disaster tips, shelters, tsunami)
- NHK World-Japan app listing
- JMA, multilingual disaster information
- JMA, earthquake early warning issuance criteria and legal provisions, incl. NHK's duty to broadcast (Japanese)
- JMA, earthquake early warning limitations (Japanese)
- JMA, Earthquake Early Warning leaflet (English)
- JMA, tsunami warnings and advisories (English)
- JMA, earthquake activity after a large earthquake (Japanese)
- JMA, typhoon averages 1991–2020 (Japanese)
- JMA, typhoon forecast circle and five-day forecast (Japanese)
- JMA, Nankai Trough Extra Information criteria (Japanese)
- JMA/Cabinet Office, end of special call for caution, 15 August 2024 (Japanese)
- Headquarters for Earthquake Research Promotion, 8 August 2024 Hyuganada earthquake (Japanese)
- Cabinet Office (Bousai), Nankai Trough Extra Information: what individuals should do (English)
- Cabinet Office (Bousai), Nankai Trough Extra Information multilingual leaflet
- Cabinet Office (Bousai), disaster-type evacuation signs, JIS Z9098 (Japanese)
- Shizuoka Prefecture, transport status, 9 August 2024 07:00 (Japanese)
- Tokyo Metropolitan Government, disaster preparedness guide, stranded persons (English)
- Tokyo Metro, safety pocket guide, earthquakes (English)
- JR East, Shinkansen earthquake detection with seabed seismometers (Japanese)
- MLIT, final summary on planned rail suspensions, 2 July 2019 (Japanese)
- MLIT, final summary on planned rail suspensions, accompanying document (Japanese)
- MLIT, airport natural-disaster committee, main opinions after the 2019 Narita disruption (Japanese)
- KDDI (au), earthquake early warning on au phones (Japanese)
- JMA, guidance for EEW-detecting radios (NHK chime at the start of radio broadcasts) (Japanese)
- ntt-east.co.jp: How do I let family know I am safe if phone lines are jammed?
Read next
- Emergency numbers and visitor help in JapanFind the right emergency contact or help desk, and know what details to have ready when you reach out.
- Planning around Japan holidays and changing weatherBuild an itinerary that can adapt to holiday opening hours, weather updates and transport changes.
- What to do when your train is cancelled in JapanFind your ticket issuer, learn the refund route, and plan the next leg of your journey.
- An Okinawa itinerary for rain and hot weatherPlan shorter outings, rest stops and transport alternatives for days when the weather changes your plans.
- What to look for in Japan travel insuranceWork through medical costs, cancellation and baggage cover alongside the policy limits that matter to your trip.
Sources and how this guide was checked
Published · Based on official sources · no affiliate links
Official sources
These official sources explain the rules and conditions used in this guide. Live availability and your own booking, admission or service outcome still need to be confirmed for your trip.
- Japan Tourism Agency, disaster information tools for visitors (Safety Tips, Japan Visitor Hotline, Japan Safe Travel, NHK World-Japan)
What this confirms: Lists the visitor disaster-information tools: Safety Tips, the Japan Visitor Hotline, Japan Safe Travel and NHK World-Japan.
Last checked - Safety Tips app page (JNTO/JTA)
What this confirms: Describes the Safety Tips app's alerts, languages, evacuation flowchart and communication cards.
Last checked - Safety Tips, App Store listing
What this confirms: Lists the alert types and states that alerts are sent only for the set locations and for quakes expected to reach intensity 4 or more.
Last checked - JNTO, Safety tips for travelers (disaster tips, shelters, tsunami)
What this confirms: JNTO's disaster tips for travellers, including shelters, tsunami advice and accommodation that takes in evacuees.
Last checked - NHK World-Japan app listing
What this confirms: App listing for NHK World-Japan, which sends earthquake, tsunami and emergency weather alerts in 11 languages.
Last checked - JMA, multilingual disaster information
What this confirms: JMA's warnings and earthquake, tsunami and volcano information in 15 languages.
Last checked - JMA, earthquake early warning issuance criteria and legal provisions, incl. NHK's duty to broadcast (Japanese)
What this confirms: When JMA issues an earthquake early warning, the areas it names and NHK's legal duty to broadcast it.
Last checked - JMA, earthquake early warning limitations (Japanese)
What this confirms: Explains that near the epicentre the warning may arrive with or after the shaking, and that estimates can be about one intensity level out.
Last checked - JMA, Earthquake Early Warning leaflet (English)
What this confirms: JMA's English leaflet on what to do, by location, when an earthquake early warning is issued.
Last checked - JMA, tsunami warnings and advisories (English)
What this confirms: JMA's tsunami warnings and advisories, including evacuating at once after strong or long shaking and staying away until warnings are lifted.
Last checked - JMA, earthquake activity after a large earthquake (Japanese)
What this confirms: JMA's advice to watch for quakes as large as the first for about a week, especially in the first two or three days.
Last checked - JMA, typhoon averages 1991–2020 (Japanese)
What this confirms: JMA's 1991–2020 typhoon averages, including approaches within 300 km and figures for Okinawa and Amami.
Last checked - JMA, typhoon forecast circle and five-day forecast (Japanese)
What this confirms: Explains JMA's five-day track forecast and that the forecast circle shows where the storm's centre has a 70% chance of being.
Last checked - JMA, Nankai Trough Extra Information criteria (Japanese)
What this confirms: When JMA issues Nankai Trough Earthquake Extra Information, and the Attention and Alert criteria.
Last checked - JMA/Cabinet Office, end of special call for caution, 15 August 2024 (Japanese)
What this confirms: Announces the end of the special call for caution at 17:00 on 15 August 2024.
Last checked - Headquarters for Earthquake Research Promotion, 8 August 2024 Hyuganada earthquake (Japanese)
What this confirms: Describes the magnitude 7.1 Hyuganada earthquake of 8 August 2024.
Last checked - Cabinet Office (Bousai), Nankai Trough Extra Information: what individuals should do (English)
What this confirms: Cabinet Office guidance on what individuals should do under Megathrust Earthquake Attention and Alert.
Last checked - Cabinet Office (Bousai), Nankai Trough Extra Information multilingual leaflet
What this confirms: Multilingual leaflet summarising the Nankai Trough Extra Information for residents and visitors.
Last checked - Cabinet Office (Bousai), disaster-type evacuation signs, JIS Z9098 (Japanese)
What this confirms: The national standard JIS Z9098 for disaster-type evacuation signs, which show the hazards each site is designated for.
Last checked - Shizuoka Prefecture, transport status, 9 August 2024 07:00 (Japanese)
What this confirms: Shizuoka Prefecture's transport status at 07:00 on 9 August 2024, after the first Attention notice.
Last checked - Tokyo Metropolitan Government, disaster preparedness guide, stranded persons (English)
What this confirms: Asks people to stay at a safe location and not head home all at once after a large earthquake.
Last checked - Tokyo Metro, safety pocket guide, earthquakes (English)
What this confirms: What to do on trains and in stations during an earthquake, including not forcing your way out of a stopped train.
Last checked - JR East, Shinkansen earthquake detection with seabed seismometers (Japanese)
What this confirms: How Shinkansen seismometers, including some on the seabed, trigger emergency stops.
Last checked - MLIT, final summary on planned rail suspensions, 2 July 2019 (Japanese)
What this confirms: MLIT's 2019 summary asking rail operators to warn early of planned suspensions, give restart information and use several languages and channels.
Last checked - MLIT, final summary on planned rail suspensions, accompanying document (Japanese)
What this confirms: The accompanying document to MLIT's 2019 planned-suspension summary.
Last checked - MLIT, airport natural-disaster committee, main opinions after the 2019 Narita disruption (Japanese)
What this confirms: Main opinions of MLIT's airport natural-disaster committee after passengers were stranded at Narita in 2019.
Last checked - KDDI (au), earthquake early warning on au phones (Japanese)
What this confirms: au's earthquake early warning service: free, with a dedicated alarm, and alerts that may reach au phones but not other carriers' phones.
Last checked - JMA, guidance for EEW-detecting radios (NHK chime at the start of radio broadcasts) (Japanese)
What this confirms: JMA guidance confirming that radio broadcasts of the warning start with NHK's chime, which commercial stations also use.
Last checked - ntt-east.co.jp: How do I let family know I am safe if phone lines are jammed?
What this confirms: Phone lines jammed after a big quake? NTT opens the Disaster Emergency Message Dial (171), a voice message board, only when a disaster strikes.
Last checked
About this guide
Set up alerts before you fly, what to do in the first seconds of a quake, when to head for high ground, and how typhoon train suspensions hit plans.
Checked against official Japanese sources on 11 October 2026. In an emergency, instructions from local officials, hotel staff and train crew come first.
How we checked this
First moves and booking checks
Official guidance comes first in an emergency. These rows show what each source establishes, and what it does not.
If columns are cut off, scroll sideways. Keyboard: focus the table, then use Left/Right Arrow keys.
| Question | What we found | Where it comes from | What this means for your trip |
|---|---|---|---|
| What do I do when an earthquake early warning sounds? | Protect your head and stay where you are; don't rush outside. | JMA Earthquake Early Warning leaflet and Tokyo Metro safety guide | Read the location table once before your trip so the first move is automatic. |
| When should I head for high ground on the coast? | If shaking is strong, or weak but long, go at once without waiting for a warning, and stay until warnings are lifted. | JMA tsunami warnings and advisories | On arrival at a coastal hotel, find the nearest high ground or tsunami evacuation building. |
| Will a phone on a foreign SIM receive Japan's alerts? | No official guidance says so; au notes that alerts can reach some carriers' phones and not others. | KDDI (au) earthquake early warning page | Install Safety Tips, allow notifications and set your locations. |
| Does a typhoon forecast cancel my hotel booking? | No. Rail operators often announce planned suspensions, but hotels and airlines apply their own terms. | MLIT planned-suspension summary | Contact the hotel or platform before check-in and get any offer in writing. |
| Should I cancel if a Nankai Trough advisory is issued? | An Attention notice asks people to carry on with normal life while rechecking preparations, generally for one week. | Cabinet Office Nankai Trough guidance | Know your hotel's evacuation route and allow for slower trains; under an Alert, follow local instructions. |
Based on official sources, linked below.
Guide updates Reviewed
When this guide was checked and what changed
- First published
- Last checked
- Check again by
- What we checked
- JMA, the Cabinet Office, MLIT, the Japan Tourism Agency and JNTO, the Tokyo Metropolitan Government, Tokyo Metro, JR East, Shizuoka Prefecture and KDDI (au), checked 8 October 2026. In an emergency, follow local officials, hotel staff and train crew.
- Latest update
- : How do I let family know I am safe if phone lines are jammed?
The date above reflects when these checks were last run. If an individual source was rechecked later, you’ll see that date next to it below. Other copy edits are listed in the update history.
Who edits this guide
One editor looks after this guide
Japan, Booked. is run and edited from Japan. The same editor checks the Japanese and English sources, writes the traveller-facing guidance and keeps the correction history up to date.
What changed
Update history
- Guide updated
How do I let family know I am safe if phone lines are jammed?
- Scheduled recheck
Rechecked on 11 October 2026: the dated facts in this guide were compared with their primary sources (the per-source dates and the review date stay as they were until the source list is updated). Replaced a dead JR East link with the current page.
- Worked example and dated key facts
Added a worked example and check dates next to the key facts, using only facts already in this guide. No facts were rechecked, so the review date is unchanged.
- First published
Published a visitor's guide to earthquakes, tsunamis and typhoons in Japan: alerts to set up, first moves by location, what happens after the shaking, typhoon suspensions and the Nankai Trough information, checked against official sources on 8 October 2026.
If an operator, organiser or product changes in a way that affects the guide, we check it again sooner. Reader reports help us spot what to investigate, and we verify them against current official information before publishing. Read our update and corrections policy. See every guide's review schedule. Suggest an improvement to this guide.
