Japan faces more natural disasters than most travel destinations — typhoons, earthquakes, volcanic activity, and occasional tsunamis. The good news: Japan has the world's most advanced warning and response systems, and the actual risk to tourists is very low with basic preparation.
Typhoon Season
Typhoons (tropical cyclones) hit Japan primarily between July and October, with peak intensity in August–September. They affect the Pacific coast, Okinawa, Kyushu, and Shikoku most severely; Tokyo and Kyoto are affected less frequently. What to expect: 1–2 days of advance warning. Transport (flights, shinkansen, ferries) suspends during severe typhoons. Hotels and shops close. The storm typically passes in 12–24 hours. What to do: Follow NHK World (English TV/app/website) for real-time updates. Secure outdoor belongings. Stock water and food for 1–2 days if a serious typhoon is approaching. Avoid coastal areas during storm surge warnings.
Earthquake Readiness
See our dedicated Earthquake Safety guide for full details. Summary: Japan's buildings are engineered for earthquakes; the primary risk is falling objects. In a major earthquake: shelter under a table, move away from windows, do not run outside until shaking stops. Coastal areas: move inland and to high ground immediately after major coastal shaking.
Volcanic Activity
Japan has 110 active volcanoes — most dormant, a few active. Mt. Fuji: Technically active (last erupted 1707) but no imminent eruption risk — current monitoring shows no unusual activity. Sakurajima (Kagoshima): Actively erupting — ash falls on Kagoshima City, eruptions visible from the city ferry. Not dangerous for ordinary visitors. Nasu-dake, Aso, Kusatsu-Shirane: These have had recent eruptions with access restrictions — check the Japan Meteorological Agency volcano alert levels before visiting.
Tsunami Risk
Tsunamis follow large coastal or submarine earthquakes. Risk areas: Pacific coast of Honshu, Tohoku, Tokai, and Nankai regions. Urban areas (Tokyo, Osaka, Kyoto) are inland enough to not be in the primary tsunami zone. If you feel prolonged intense shaking near a coast: don't wait for official warnings — move inland and to higher ground immediately.
Emergency Apps & Information
Safety Tips app (JNTO): English earthquake, tsunami, and typhoon alerts. Download before traveling. NHK World app: Real-time English news including disaster alerts. Japan Meteorological Agency (jma.go.jp/jma/en/): Official typhoon tracks, earthquake reports, and volcano alert levels in English.