What you need to know about the government's "subsequent quake advisory" following Monday night's earthquake off the coast of Aomori Prefecture. https://www.japantimes.co.jp/news/2025/12/09/japan/science-health/japan-aomori-hokkaido-quake-alert-mechanism/?utm_medium=Social&utm_source=mastodon #japan #sciencehealth #earthquakes #geology #aomori #hokkaido #meteorologicalagency