Weathernews Inc. has started a new service that provides tsunami information online using radars that can detect the waves within 30 km of the coast and capture images of them as fast as 15 minutes before they reach shore.

The radars are located at nine sites along the coastlines of Aomori, Iwate, Miyagi, Fukushima and Ibaraki prefectures, which were devastated by last March’s monster waves, Weathernews spokesman Hitoki Ito said Tuesday.

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