The East Coast earthquake came from a fault that's been asleep for hundreds of millions of years but suddenly reactivated

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man with concerned expression wearing red sweater gestures at a row of homes blocked off with yellow tape
Newark City employee Sushil Nagpal stands outside homes that were damaged and had to be evacuated after the earthquake on Friday,

Spencer Platt/Getty Images

Tectonic plates that are causing the Himalayas to grow may also be splitting Tibet in two, study suggests

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Colorful Buddhist prayer flags in the Himalayas.
Buddhist prayer flags in the Himalayas.

Avatar_023/Getty Images

Scientists finally finished mapping Earth's 8th continent Zealandia, helping them solve the lost continent's mysterious history

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Zealandia
Scientists now have a complete map of Zealandia.

Nick Mortimer/GNS Science

The Atlantic Ocean is getting wider every year. Researchers have finally figured out why.

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midatlantic skitched 1
A map of the Atlantic Ocean floor.

NASA Earth Observatory map by Joshua Stevens, using data from Sandwell, D. et al. (2014).

Watch the last billion years of Earth's tectonic plate movement in just 40 seconds

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Tourists walk on a boardwalk in a Rift Valley exposing the North American and Eurasian tectonic plates, at Thingvellir National Park, Iceland
Tourists walk between a rift in the North American and Eurasian tectonic plates at at Thingvellir National Park, Iceland.

Chris Helgren/Reuters

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