Subscribe free to our newsletters via your
. Earth Science News .

Evidence of ancient supervolcano found in Utah
by Staff Writers
Provo, Utah (UPI) Dec 11, 2013

disclaimer: image is for illustration purposes only

Geologists in Utah report they've had to look no further than their back yard for evidence of some of the largest volcanic eruptions in Earth's history.

Researchers from Brigham Young University say the supervolcanoes are no longer active, but 30 million years ago they spewed almost 2 million cubic feet of magma during a one-week period near a place called Wah Wah Springs in west-central Utah.

By comparison, this eruption was about 5,000 times larger than the 1980 Mount St. Helens eruption, they said.

"In southern Utah, deposits from this single eruption are 13,000 feet thick," study leader Eric Christiansen said. "Imagine the devastation -- it would have been catastrophic to anything living within hundreds of miles."

The eruption buried a vast region extending from central Utah to central Nevada, and traces of ash have been discovered as far away as Nebraska, they reported in the journal Geosphere.

It wasn't an isolated event, the researchers said; evidence was found of 15 super-eruptions and 20 large calderas.

The supervolcanoes have been hidden in plain sight for millions of years, hidden by the ravages of erosion and later deformation and not obvious to the naked eye because they affect enormous areas, they said.

"Supervolcanoes as we've seen are some of Earth's largest volcanic edifices, and yet they don't stand as high cones," Christiansen said. "At the heart of a supervolcano instead, is a large collapse."


Related Links
Bringing Order To A World Of Disasters
When the Earth Quakes
A world of storm and tempest

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

New Japan volcanic islet here to stay, for now: official
Tokyo (AFP) Dec 10, 2013
A new island created by a volcanic eruption off Japan's coast is here to stay - for now at least, scientists said Tuesday, adding the new landmass could withstand erosion for several years. Lava that was dramatically vented when an undersea volcano began erupting last month cooled and solidified above the surface of the sea, creating a small island 1,000 kilometres (600 miles) south of Toky ... read more

Desperate Syrians find little comfort in new homes

Japan to spend $970 mn on nuclear soil store: report

Kerry to tour typhoon-hit Philippines, Vietnam

NASA Developing Natural Hazard Warning Systems

Citrus fruit inspires a new energy-absorbing metal structure

Intense 2-color double X-ray laser pulses: a powerful tool to study ultrafast processes

Highly insulating windows are very energy efficient, though expensive

Silver corrosion provides clues about performance in atmospheric conditions

European Parliament approves fishing reforms, discards ban

California Water Planners Hear NASA Long-Term Forecast

Dutch water firm cuts Israel ties after tense PM visit

Coal port plan will kill Great Barrier Reef: activists

Ice melt means greener Arctic is the new normal

Ice loss from West Antarctica on the increase

Airborne Radar Looking Through Thick Ice During NASA Polar Campaigns

Lakes discovered beneath Greenland ice sheet

Peaceful bumblebee becomes invasive

Scientists map food security and self-provision of major cities

Study demonstrates that indigenous hunting with fire helps sustain Brazil's savannas

Home teams hold the advantage

Evidence of ancient supervolcano found in Utah

Heavy rain sparks Rio state of alert

New Japan volcanic islet here to stay, for now: official

At least 11 dead after heavy rains in northeast Brazil

DR Congo, M23 rebels sign peace documents

Trinidad security industry faces calls for clean-up

US military to fly AU troops to C. Africa: officials

Bangui residents guide French troops in weapons hunt

Not all species age the same, and humans are outside the norm

Not all species age the same; humans may be outliers

Aging out of bounds

Discovery of partial skeleton suggests ruggedly built, tree-climbing human ancestor

The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement