Truth Frequency Radio
Nov 03, 2013

supervolcano-volcano-seismology-geology-maine-U.S.-north-america-magma-plates-tectonic-truth-frequency-radio-chris-geo-sheree-geo-alternative-media-news-informationby Becky Oskin, LiveScience

Maine has supervolcanoes. Wait, Maine has volcanoes? Yes, and their eruptions could have been among the biggest ever on Earth, geoscientist Sheila Seaman reported here Tuesday (Oct. 29) at the Geological Society of America‘s annual meeting.

“Long before there were these things called supervolcanoes, we’ve known about giant, big, horrific silicic volcanic eruptions,” said Seaman, of the University of Massachusetts at Amherst. The most massive of these blasts in recent history was Toba, which blew up an island in Indonesia 2.5 million years ago. The explosion heaved 700 cubic miles (2,800 cubic kilometers) of magma out of the Earth’s crust.

Around 420 million years ago, a series of super-eruptions dropped thick piles of ash and lava fragments along the proto-East Coast. There are at least four volcanoes spread out along 100 miles (160 km) of Maine’s coast, Seaman said.

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