Warning of potential magnitude-9 mega quake in trench off Hokkaido Researchers are warning that unreleased stress energy at an undersea trench off northern Japan has become large enough to possibly trigger a magnitude-9 mega quake, according to reports. Researchers f...

[Japan] Warning of potential magnitude-9 mega quake in trench off Hokkaido > www.thestandard.com.hk/section-news... #SeismicActivity #Earthquake #MegaQuake #Warning #ChishimaTrench #Hokkaido #Japan