From an underwater volcano Oregon Coast Scientists say it could erupt late this year.
The volcano known as the Axial Seamount, is more than 4,900 feet from the Pacific Ocean and 300 miles from the Oregon coast, but shows signs of erupting for the first time since 2015.
Volcanoes are formed by hot spots, the region of the Earth’s mantle where hot plumes of molten material rise to the crust. University of Washington College of the Environment said in an April blog post. As the crust moves over the mantle, the hot spots remain on top of the mantle, creating long chains of volcanoes over time.
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Regional cable arrays extend across the Juan de Fucatectonic plates, from the Oregon coast to the summit of a 300-mile offshore axle ship. (Marine observation initiative through the University of Washington)
“More than two-thirds of the Earth’s surface were formed by volcanic eruptions on these central ridges,” said Maya Tolstoy, a university geophysicist and dean of the university’s environmental university. “Axial Seamount is the direct result of these fundamental processes that continue to form today’s planet.”
The eruption poses no danger, scientists said.
“Axial Seamount is too far from land for people on land to notice when they erupt. The eruption at Axial Seamount has nothing to do with seismic activity on the land.
The first sign of an eruption on a volcano will result in a sharp increase in numbers Earthquakes Around it, the Post states.
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Three months after the 2011 eruption, the flow of waste from the shaft ship through the ventilator. (Ocean Observatory Initiative through the University of Washington)
“The volcano has already surpassed the inflation we observed in 2015, but seismic activity is still quite low,” said Deborah Kelly, a professor at UW Marine School and director of regional cable arrays. “We see 200-300 earthquakes per day, and there are about 1,000 spikes per day due to the tide. If what we learned in 2015 is correct, we can expect to see more than 2,000 a day just a few months before the eruption.”
Earthquakes are caused by magma moving towards the surface, Post said.
Seismic activity at shaft sailor spikes at low tide. (Ocean Observatory Initiative through the University of Washington)
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“That period lasts about an hour and the magma reaches the surface,” said William Wilcock, professor at the UW School of Oceanography. “Lava flows spread throughout the caldera, with lava-filled cracks opening north or south, reaching 40 kilometers (about 25 miles).
“Seismic activity will collapse fairly quickly over the next few days, but the eruption will continue slowly for about a month.”
