World’s Biggest Craters Formed By Seafloor Eruptions (Pockmarks) Found In Waters Off New Zealand

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An international team of scientists have found what they believe are the world’s biggest ” pockmarks” — craters formed by seafloor eruptions of gas or fluids — in waters off New Zealand. The pockmarks are situated at a depth of about 1,000 meters on the seafloor of the Chatham Rise, about 500 km east of Christchurch.

The three giant pockmarks, the largest measuring 11 km by 6 km in diameter and 100 meters deep, are possibly twice the size of the largest pockmarks recorded in scientific literature. As you can see in the first image, the largest pockmark is about the size of Wellington, New Zealand! Huge!

pockmark found are the size of Wellington new Zealand april 2013

As discovered by the recent undersea study, the pockmarks stretch far out to sea and are part of a much larger field of thousands of smaller pockmarks that cover an estimated 20,000km of sea floor extending eastward along the Chatham Rise for several hundred kilometres from Banks Peninsula. – Stuff

giant undersea craters in New Zealand april 2013

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