Water level graph of the underground reservoirs (As of 4:00 pm on April 11) Water level graph of the underground reservoirs (As of 4:00 pm on April 11)
Data source
Japan Disasters Digital Archive (RIJS, Harvard University)
This Archive (JDA) is an online portal to digital materials, designed and maintained by the Reischauer Institute of Japanese Studies at Harvard University. The materials recorded the cascading series ...
Last updated
October 9, 2026