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New Look at 1755 Quake, Europe’s Largest Ever, May Foretell Atlantic ‘Ring of Fire’

Summary by Science
Analysis suggests Earth’s mantle is peeling from the crust in the eastern Atlantic, a possible sign of the ocean’s eventual closure

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Earth scientists have discovered a new rock structure beneath the ocean floor southwest of Portugal. They suspect that this "drip structure" was the cause of the largest earthquake ever recorded in Europe, 250 years ago. For the research, scientists from Vrije Universiteit Amsterdam, the University of Lisbon, and Johannes Gutenberg University of Mainz examined the seafloor and deeper layers in a section of the Atlantic Ocean. An earthquake struc…

·Netherlands
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Never had "a failure with enough dimensions to generate a symmetry like the 1755", but a now discovered figurine, which is laying up a plate in the Atlantic, may be the reason.

·Portugal
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The devastating Lisbon earthquake of 1755, which left the Portuguese capital and much of Western Europe in ruins, could have been much more than an isolated disaster. According to a new study, the earthquake of magnitude greater than 8 on the Richter scale was not only the worst seismic catastrophe of its time, but also one of the first signs of a deep process at the bottom of the Atlantic.

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Science broke the news in on Wednesday, August 27, 2025.
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