Water service remains interrupted for 44,380 households [1] nine days after a major earthquake struck Kumamoto Prefecture [1].
The prolonged outage is preventing thousands of displaced residents from returning to their homes, forcing them to remain in crowded shelters during a severe heat wave.
In Yatsushiro City, repair crews are working to restore service by cutting and re-joining water pipes that were displaced by the quake. Koji Kakusaka, president of Kakusaka Equipment, said the pipes shifted because of fault displacement. He said that some of the work is being done by hand [1]. Crews have identified at least 500 leak points within Yatsushiro City [1].
The recovery effort is complicated by extreme weather. Kumamoto City recorded a maximum temperature of 36.8°C [1], increasing the risk of heat-related illness for both the workers and the residents living without running water.
At a shelter in Uki City, residents expressed frustration and fear over the slow return to normalcy. One unnamed female resident said she wants to go home soon because she cannot see everyone she knows [1].
Lack of basic utilities remains a primary barrier to evacuation center departures. The same resident said she is afraid to return home alone because she fears another earthquake with an intensity of about five, and noted that she cannot do laundry without water [1].
The crisis highlights the vulnerability of underground infrastructure to seismic shifts, where the physical movement of the earth shears pipes apart, making restoration a slow, manual process.
“Water service remains interrupted for 44,380 households”
The scale of the water infrastructure failure in Kumamoto demonstrates how seismic fault displacement can cause systemic utility collapses that persist long after the initial shaking stops. When basic needs like water and sanitation are unavailable, it creates a secondary crisis of displacement, as residents cannot safely return to their homes even if the structures are habitable, particularly during extreme weather events.
