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Japan issues special advisory on Nankai Trough megaquake: urgent preparations advised

Japan ·

The Nankai Trough, a significant underwater trench stretching approximately 700 kilometers from Suruga Bay in Shizuoka Prefecture to the Hyuganada Sea in Miyazaki Prefecture, is a known seismic hotspot due to the subduction of the Philippine Sea Plate beneath a landward plate. This subduction process, occurring at a rate of 3 to 5 centimeters annually, results in the accumulation of tectonic strain, which typically releases in massive earthquakes roughly every 100 to 150 years.

By Ishita Agarwal
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Kochi prefecture faces urgent challenge in evacuating elderly ahead of Nankai trough tsunami

Japan ·

In Nakatosa, Kochi Prefecture, the situation is particularly dire. Kohei Kiyooka, 39, a disaster prevention staffer at a local nursing home, described the heightened urgency following the recent advisory. With many residents reliant on wheelchairs or bedridden, the absence of nearby high ground adds to the urgency. Kiyooka has proactively secured seven “tsunami lifeboats” from the town—each capable of carrying 20 people—as a contingency measure. Despite these preparations, the challenge remains in securing alternative accommodation and ensuring timely evacuation. “We urgently need to discuss with the prefectural and central governments about securing alternative shelters,” Kiyooka emphasized.

By Ishita Agarwal
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Bon holidays commence amidst Nankai trough megaquake advisory: tourism and safety measures in focus

Japan ·

At JR Tokyo Station, the Tokaido Shinkansen platforms were bustling with families and young people embarking on their journeys. Among them was a 21-year-old university student from Matsudo, Chiba Prefecture, traveling to Osaka. "My hometown is near the sea. I don’t know the evacuation sites and routes, so I want to look those up," he noted, reflecting a broader sense of caution among travelers.

By Ishita Agarwal