A specific future tsunami strike on Japan cannot be predicted in advance; tsunamis are only forecast once an actual undersea earthquake or similar event has occurred and been measured. No one can reliably say when or if a particular future tsunami will hit.
Current situation
Japan’s Meteorological Agency and international centers continuously monitor seismic activity and issue tsunami warnings or advisories only after strong offshore earthquakes or other triggers are detected. When that happens, alerts are broadcast immediately on TV, radio, phones, and loudspeakers in affected areas, with expected arrival times and wave heights. If you are in Japan and see or receive an official tsunami warning or evacuation order, move at once to higher ground or a designated evacuation site and follow local authorities’ instructions.
Safety steps to take
- If you feel strong or long shaking near the coast, evacuate to higher ground immediately, even before an official warning.
- Stay away from beaches and rivers after a strong quake, because tsunami waves can travel up river channels.
- Prepare an emergency bag, know your local evacuation routes, and confirm where the nearest high ground or tsunami shelter is in advance.
For precise, real-time information, check official Japanese sources such as the Japan Meteorological Agency, local government disaster pages, or public broadcaster NHK, and follow their guidance.
