Earthquakes in Japan: what to do where you are, and how Earthquake Early Warnings work

Japan has frequent earthquakes, and its official advice for visitors starts with a single line: "First, secure your safety. Where are you now?" (Japan Tourism Agency). The right move depends on the answer, so this guide follows the agency's own breakdown by place.

Earthquake Early Warnings (EEW)

The Japan Meteorological Agency (JMA) describes the system as an advance announcement of the estimated seismic intensities and expected arrival time of the main shaking. The tourism agency says the alarm, with a special sound, is broadcast on TV, radio, cell phones and smartphones. When you see or hear one, stay calm and secure your safety, even if you don't feel any shaking yet.

Know its limits (JMA):

  • The time between the warning and the main shaking is very short: a matter of seconds, or between several seconds and a few tens of seconds.
  • Close to the epicenter, the warning may not arrive before strong shaking hits.
  • Accuracy is limited, especially for large earthquakes, and false warnings can happen from accidents, lightning or device failure.

JMA's Dos & Don'ts leaflet sums up the response: remain calm and secure your personal safety; at home, protect your head and shelter under a table, and don't rush outside. An EEW that predicts shaking of 6-lower or more on JMA's seismic intensity scale counts as an Emergency Warning.

What to do, by place (Japan Tourism Agency)

Where you areWhat to do
Hotel or other lodgingProtect your head and take shelter under a durable table. Indoors may be safer at times; don't hastily run outside. Open the door to secure a way out and follow the staff
Sightseeing, cultural or shopping facilityStay in an open hall or near a pillar, away from things that can fall. Don't evacuate by elevators that haven't been confirmed safe. Follow staff instructions
UndergroundStay calm, protect your head, and wait for the shaking to stop. If emergency lights come on, walk along the walls and follow the staff
ElevatorPress all floor buttons and get off where it stops. If you're stuck, use the "Emergency Call Button"
Downtown or office areaProtect your head with a bag, watch for falling objects, and stay away from buildings
Coast or riversideA tsunami may occur, including in rivers. Head for high ground or a tsunami shelter
Train, subway or busHold the handrails and protect your head. The vehicle may brake hard. Stepping down onto the tracks on your own is very dangerous. When it stops, follow staff instructions
Driving a rental carAvoid sudden braking, park on the left side of the road and stop the engine. If you evacuate, leave the keys in the ignition, close the windows and doors but leave them unlocked, and go on foot

After the shaking, the agency's advice is the same everywhere: pay attention to aftershocks and secondary disasters. JNTO adds that fire is the most dangerous secondary disaster.

Before your trip

  • When you check in, double-check where the evacuation routes are (JNTO).
  • Keep your phone and devices fully charged (JNTO).
  • Save the JNTO Japan Visitor Hotline, 050-3816-2787, which takes emergency calls, including about disasters, 24 hours a day.
  • Install the Safety tips app; see Typhoons in Japan for what it does.

Related

Everyday

When you check into a hotel in Japan, find the evacuation routes and keep your phone charged.

When it counts

When the ground shakes or a phone alarm sounds, you protect your head first and know the next step for where you are.

Sources and when we checked them

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