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Located on the Juan de Fuca Ridge in the Pacific Ocean, the underwater shield volcano last erupted in 2015, following previous eruptions in 1998 and 2011. The volcano, first detected in the 1970s ...
Scientists also suggest that the volcano may still be erupting underwater. [69] A 2022 study in the journal Ocean Engineering by Heidarzadeh and others determined the size of the initial tsunami caused by the eruption.
The volcano's base at the seafloor is approximately 20 km in diameter, [9] rising roughly 2,000 m towards the sea surface. Before the 2022 eruption, the volcano's caldera was roughly 150 m below sea-level, and had a size of 4 × 2 km. [10] Its northern and southern portions were filled by volcanic deposits from previous eruptions. [10]
Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. Many submarine volcanoes are located near areas of tectonic plate formation, known as mid-ocean ridges. The volcanoes at mid-ocean ridges alone are estimated to account for 75% of the magma output on Earth. [1]
MORE: Mile-deep underwater volcano could erupt off West Coast this year, scientists say. ... 2020, file photo, Mt Spurr, an active large stratovolcano that last erupted in 1992, is shown along the ...
A long-dormant underwater volcano near Antarctica may have erupted, triggering 85,000 earthquakes in the area. Research stations reported the swarm of earthquakes as early as August 2020.
This is a list of volcanic eruptions in the 21st century with a volcanic explosivity index (VEI) of 4 or higher, and smaller eruptions that resulted in fatalities, significant damage or disruptions. The largest volcanic eruption of the 21st century is the 2022 Hunga Tonga–Hunga Haʻapai eruption and tsunami , and the deadliest are the 2018 ...
This image captured May 14, 2022, by NASA's Landsat 9, shows a plume of discolored water being emitted from the 'Sharkcano,' an underwater volcano that lies about 15 miles south of Vangunu Island.