INSIGHT: M7.2 quake felt widely in eastern Japan, experts warn tsunami risk not over

A magnitude 7.2 earthquake that struck off the Pacific coast of Iwate Prefecture in northeastern Japan on Thursday triggered widespread perceptible tremors in the country's eastern half, from as far as Kanagawa Prefecture, south of Tokyo, to the northern main island of Hokkaido.This was due to long-period ground motion, which travels over long distances and can cause buildings to sway even hundreds of kilometers from the epicenter. The weather agency reported intensity levels 1 and 2 on the four-tier scale for long-period ground motion for these areas.Level 2, at which people indoors feel …READ FULL ARTICLE