A newly discovered impact crater below the seafloor suggests that more than one asteroid may have hit Earth during the time when dinosaurs went extinct. Evidence of an asteroid impact crater beneath the North Atlantic Ocean has been discovered by scientists. It could force researchers to rethink
Discovery of a large impact crater beneath the North Atlantic Ocean reveals that more than one asteroid could have spelled doom for the dinosaurs.
Evidence of an asteroid impact crater beneath the North Atlantic Ocean has been discovered by scientists. It could force researchers to rethink how the dinosaurs reached the end of their reign. “This would have generated a tsunami over 3,000 feet high, as well as an earthquake of more than magnitude 6.5.” —Spanning more than 5 miles in diameter, the crater was discovered using seismic measurements, which allow scientists to probe what lies deep below Earth’s surface.
Named after a nearby seamount, the Nadir crater is buried up to 1,300 feet below the seabed about 250 miles off the coast of Guinea, West Africa. According to the research team, the asteroid that created the newly discovered Nadir crater could have formed by the breakup of a parent asteroid or by a swarm of asteroids in that time period. If confirmed, the crater will be one of less than 20 confirmed marine impact craters found on Earth.
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