The Petersburg Post

Monday, Apr 20th, 2026 - Japan issued an advisory Monday for an increased risk of a possible mega-quake in northern coastal areas, induced by a major earthquake earlier in the day. Magnitude 7.7 earthquake struck off Japan's northeastern coast earlier on Monday Listen to this article Estimated 4 minutes The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to ...