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The Incas May Have Deliberately Built Machu Picchu Along Fault Lines. Here’s Why.
But why would 15th-century builders erect such an elaborate city on a narrow mountain ridge and fault line 8,000 feet above .
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The East Coast earthquake came from a fault that's been asleep for hundreds of millions of years but suddenly reactivated
The earthquake that just shook the East Coast was caused by one of dozens of ancient fault lines that have lain dormant ... and stresses kind of moving around in the Earth's crust, every now ...
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The Ring of Fire
The Ring of Fire is home to 75% of the world's volcanoes and 90% of its ... along the boundaries where the plates meet, called fault lines. The Ring of Fire is home to the deepest ocean trench ...