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Scientists warn America’s deadliest volcano is ‘RECHARGING’ for eruption amid quake swarm

SCIENTISTS have warned that America’s deadliest volcano is “recharging” its magma supply as they continue to monitor an increasing series of subterranean earthquakes.

Seismologists studying Mount St Helen’s say a “swarm” of 130 tremors have been recorded below the volcano as it generates more lava ahead of a possible future eruption.

The active volcano, responsible for America’s deadliest ever eruption, is “still very much alive” according to experts tasked with predicting when it will next blow its top.

They are continuing to monitor the situation carefully amid concerns that the current quakes could develop into a “big recharge event” indicating that a huge eruption is imminent.

Mount St Helen’s, in the north-western state of Washington, was responsible for America’s deadliest eruption in 1980 when 57 people lost their lives and hundreds of homes were destroyed.

It is located some 95 miles south of the city of Seattle, which is home to more than 600,000 people.

In a note put out this week the US Geological Survey (USGS) revealed that the number of tremors being detected below the deadly volcano has increased dramatically, with a “swarm” of 130 registering in the past eight weeks alone.

Seth Moran, scientist-in-chief at the Cascades Volcano Observatory, said: “It’s telling us that years to decades from now, St Helens will erupt again.”

Mount St Helen’s last erupted in 2008 following a surprise reawakening in 2004, which had been preceded by decades of relative inactivity.

But Erik Klemetti, an assistant professor of geosciences at Denison University, said the recent seismic activity shows the volcano is now replenishing its magma supplies ahead of a future potential eruption.

He told Wired: “As the magma intrudes, it imparts pressure on the rock around it and it heats up water/releases gases that can add to that pressure. This generates small earthquakes as the rocks shift in response to that stress.

“It does mean that even as St. Helens sleeps, the magma that will likely take part in the next eruption is working its way up towards the surface, likely stopping


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