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aries1988 : geology   4

A century of earthquakes
A recent earthquake reduced large parts of central Italy to a pile of rubble and killed almost 270 people. Though shallow, the tremor was felt in buildings as far as Rome and Florence. At 6.2 magnitude, it was the second strongest in 35 years on the peninsula.
data  geology  earthquake  history 
august 2016 by aries1988
Scientists Confirm China's Legendary Ancient Flood Was Real
Around 4000 years ago, an earthquake rumbled through central China, creating a massive landslide in deep, narrow valley with rocky, steep sides. That landslide corked up the gorge, forming a pyramid-like dam of rock and dirt that blocked the Yellow River. Wu's team believes that for somewhere between 6 to 9 months, that dam held. As the riverbed downstream turned dry, a tenuous lake of 4 cubic miles of water—half the size of Lake Mead behind the Hoover Dam—was growing.

But, as the rising lakewater eventually spilled over the new dam, it wasn't just a trickle. The whole thing broke, releasing a horrific torrent of destruction. "It's among the largest known floods to have happened on earth during the past 10,000 years. And it's more than 500 times larger than a flood we might expect on the Yellow River from a massive rainfall," says Darryl Granger—a geologist at Purdue University in Lafayette, Indiana—with the research team.
geology  earth  china  history  discovery  disaster 
august 2016 by aries1988

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