Key Facts
• Around noon on September 17, 2025, debris was found near Tobu Asakusa Station.
• Six mortar wall panels fell, the largest measuring 42.3 cm by 41.5 cm.
• The panels weighed a total of approximately 70 kg; no injuries were reported.
• The station building was completed in 1931 and renovated in 2012.
• Original components from 1931 were still in use, likely causing the incident.
• Emergency inspections of similar areas found no further abnormalities.
Summary
On September 17, 2025, six mortar wall panels fell from the Tobu Asakusa Station building in Tokyo’s Taito Ward. The largest panel measured 42.3 cm by 41.5 cm and weighed approximately 16 kg, with the total weight of the debris reaching 70 kg. Fortunately, no injuries were reported. The building, completed in 1931 and renovated in 2012, still used original components to secure its exterior walls. Tobu Railway suspects aging parts caused the incident. Emergency inspections of similar areas revealed no further issues.
