An enormous magma dome is growing under the Greek Island of Santorini, while pressures are building inside Japan’s Mt. Fuji. And things aren’t so quiet right here in the US either!

A new survey suggests that the chamber of molten rock beneath Santorini’s volcano expanded 30-40 MILLION cubic feet between January 2011 and April 2012. Santorini had its last major eruption 3,600 years ago, burying the islands of Santorini under tons of pumice. The amount of molten rock that has arrived beneath Santorini in the past year is the equivalent of about 10-20 years growth of the volcano.
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A team of scientists has discovered that the Ubehebe volcano in Death Valley, California, "may explode at any time." Magma has built up under the surface much faster and higher than previously thought. There is a water table just 500 feet below the surface of the crater, and when the magma reaches the water, it will explode.

Death Valley contains very little life, and the volcano is not big enough to cause damage any nearby city, but this unexpected finding suggests that there should be further study of the whole complex of magma beneath the area.
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Why is a volcano in Bolivia getting bigger and more powerful so FAST?

The Huffington Post quotes researcher Andrea Mustain as saying that a 43 mile wide volcano called Uturuncu is "inflating with astonishing speed." They quote volcanologist Shan de Silva as saying that Uturuncu is "one of the fastest uplifting volcanic areas on Earth."

At the rate it’s expanding, the magma underneath is increasing by 27 cubic feet every SECOND. Bolivia is not a large country: Once it explodes, will there be much of left? But this may not happen soon–volcanoes in the region hoard their magma for around 300,000 years before they erupt, and Uturuncu last erupted around 300,000 years ago.
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