Japan quake travel alert

Japan’s official earthquake and tsunami pages do not show a nationwide emergency warning in effect on April 22, even as viral videos claimed major waves and mass evacuations. (data.jma.go.jp) The Japan Meteorological Agency’s earthquake log shows a magnitude 7.5 quake off the coast of Sanriku at 12:53 a.m. on April 20, with maximum seismic intensity 5+ in Japan’s scale, followed by multiple aftershocks through April 21 and April 22. (data.jma.go.jp) JR East said the April 20 Sanriku quake prompted the agency’s “Hokkaido–Sanriku Offshore Subsequent Earthquake Advisory” at 7:30 p.m. that day and warned travelers to remain alert for further strong shaking. (jreast.co.jp) For travelers, the practical issue is operations, not just the first social-media clip. JR East’s English train-status page says it reports delays of more than 30 minutes on major lines and Shinkansen routes, and its April 22 service page showed most bullet-train lines running normally, with one Akita Shinkansen delay tied to a deer collision, not an earthquake shutdown. (traininfo.jreast.co.jp 1) (traininfo.jreast.co.jp 2) Airlines were also pointing passengers to live status pages rather than broad quake-related suspensions. ANA’s international status page said on April 22 that flights were operating as scheduled, and JAL’s domestic and international advisory pages told customers to check real-time departure and arrival information for any delays or cancellations. (ana.co.jp) (jal.co.jp 1) (jal.co.jp 2) Japan’s tsunami warning system is designed to move faster than on-the-ground confirmation. The Meteorological Agency says it issues warnings and advisories by coastal region when seismic data show destructive waves are possible, then updates arrival times and estimated heights as more information comes in. (data.jma.go.jp) That speed leaves room for confusion on social platforms, where creators may post before railways, airports, hotels, and local governments publish route-by-route decisions. The Japan National Tourism Organization’s safety page directs visitors to official alerts, weather information, news, and embassy contacts instead of relying on a single feed. (faq.japan-travel.jnto.go.jp) Japan has expanded multilingual alert distribution for that reason. NHK WORLD-JAPAN said in an April 23, 2025 press release that its app broadened earthquake and tsunami alerts to 11 languages as inbound tourism and foreign-resident demand for emergency information increased. (nhk.or.jp) The bottom line for anyone flying into Tokyo, riding north through Tohoku, or heading for the Pacific coast is simple: check the Japan Meteorological Agency for warnings, then confirm your exact train or flight with the carrier before you move. (data.jma.go.jp) (ana.co.jp)