Widespread Earthquake and Tsunami Layer Generated by Permo-Triassic Impact in Brazil

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The stratigraphic record around the Permian/Triassic boundary in the Paraná Basin of Brazil contains a layer revealing widespread destruction by strong earthquakes (seismite) and evidence for a large tsunami. A study led by Dr. Eric Tohver (University of São Paulo, Brazil) suggests these deposits are linked to the Araguainha impact event in the late Permian, roughly 254 Million years ago, which created South America’s largest impact crater in a shallow, epicontinental sea. The deposits occur at distances of up to 1,200 km from the impact site, which makes them one of the world’s most extensive seismite-tsunamite couplets.

Link to article: https://pubs.geoscienceworld.org/gsa/gsabulletin/article/525698/end-permian-impactogenic-earthquake-and-tsunami

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