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Japan - Earthquakes (ECHO 13 Dec 2025)
Pubdate: 12/12/2025 10:53:50 AM
  • A new strong earthquake of 6.7 M (revised to 6.9 M, according to the Japanese authorities) occurred at a depth of 10.7 km off the eastern coast of northern Honshu island, northern Japan on 12 December at 2:44 UTC (12:44 local time). The epicentre was located in the Northwest Pacific Ocean, approximately 115 km east of the city of Rokkasho, Aomori prefecture, in the same area as the previous 7.6 M earthquake that occurred on 8 December. The event was followed by two aftershocks of 5.5 M and 4.7 M in the area.
  • For the main event, USGS PAGER estimates up to 127,000 people were exposed to moderate shaking. Tsunami advisories were issued along the eastern coasts of Hokkaido and Aomori prefectures soon after the main event and were lifted early in the morning (local time) of 12 December. The Japan Meteorological Agency reported observed tsunami waves up to 20 cm across both the aforementioned prefectures.
  • Japanese authorities and media reports, as of 12 December, state that evacuation orders were issued for around 6,000 people across 180 municipalities throughout Hokkaido and Aomori prefectures.

(12/12/2025 11:12:04 AM - 12/13/2025 9:30:04 AM)