Japan tsunami alert after huge 7.4-magnitude earthquake as 10ft waves expected
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- Aftershock, tsunami warnings in effect after northern Japan struck by 7.5 magnitude earthquake Global News —
- Japan warns of slightly increased risk of mega-quake after a 7.7-magnitude one CTV News —
- Risk of 'megaquake' in Japan higher after powerful earthquake strikes Scientific American —
- Major earthquake off Japan's north coast CBS News —
- Major earthquake off Japan's north coast CBS News —