Heavy rain triggers flooding in Gunma and landslides in Tochigi
Fire departments in Gunma Prefecture recorded at least 21 cases of first-floor inundation by early July 18, while a landslide was confirmed in Tochigi.

Heavy rainfall has caused significant damage across Japan, prompting emergency responses in Gunma and Tochigi prefectures. NHK News Japan reports that the severe weather has led to widespread inundation and earth movement, disrupting local infrastructure and requiring immediate attention from disaster management authorities.
As of 4:00 am on July 18, 2026, fire departments in Gunma Prefecture had received numerous reports of flooding. Official data indicates at least 21 cases of first-floor inundation, alongside multiple instances of basement flooding. The exact number of basement cases remains unspecified in the initial reports, though the volume of notifications suggests a broad impact on residential properties.
Concurrent with the flooding in Gunma, a landslide occurred in Ashikaga, Tochigi Prefecture. While the event has been confirmed, details regarding the extent of property damage or potential casualties have not been provided in the current reports.
The situation is part of a broader heavy rain event affecting the region. NHK has made hazard maps and evacuation information available to residents, advising the public to monitor local disaster response resources. Authorities continue to track the developing conditions as emergency services manage the reported incidents.
No casualties have been reported in connection with these specific events in Gunma or Tochigi. Disaster management officials are advising residents in affected areas to remain vigilant and adhere to official evacuation guidance as the weather situation evolves.


