Ash from the Newberry Volcano eruption in 686 AD spread more than 3,100 miles across the globe, farther than expected for its size. Researchers found Newberry pumice eruption ash particles in Greenland ice cores, indicating long-distance transport over the North Atlantic. The ash would have affected one of the world’s busiest flight routes and could also degrade air quality. Newberry remains classified as a very high threat potential by the US Geological Survey. The study identified tiny ash particles about 0.02 mm in ice and matched their chemical elements to Newberry volcanic deposits, confirming the source. Eruptions of this scale occur globally a few times per decade and require coordinated international response.
"Scientists discovered that the last eruption of the Newberry Volcano in Oregon in 686 AD spread ash more than 3,100 miles (5,000km) across the globe - significantly further than was previously believed to be possible for a volcano of its size."
"In the study, researchers from the University of St Andrews found ash particles from the blast, known as the Newberry Pumice Eruption, in Greenland ice cores. That means the ash from the eruption travelled all the way over the North Atlantic, where it would have choked one of the world's busiest flight routes."
"Lead author Dr Helen Innes told the Daily Mail: 'While not scientifically classed as a "small eruption", eruptions the size of Newberry occur globally a few times a decade and have potential to cause significant disruption to airspace and air quality. 'Future ash-rich eruptions like Newberry are going to require a coordinated international response.'"
"In their new study, Dr Innes and her team identified tiny (around 0.02 mm) particles of dust inside a core of ice. By matching the chemical elements in the ash with volcanic deposits from the Newberry volcano's most recent eruption, the researchers discovered that they were a perfect geochemical match."
Read at Mail Online
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