Recently, Fukutoku-Okanoba Submarine Volcano exploded in the Pacific Ocean, off Japan that may poses a risk to the passage of planes and ships.
About
About Fukutoku-Okanoba volcano-
The Fukutoku-Okanoba volcano is situated about 25 metres (80 feet) below the sea five kilometres north of Japan’s South Iwo Jima Island.
The plume reached a height of 16 kilometres above the surface, posing a risk to the passage of planes and ships.
The eruption could have happened in shallow water due to which the ash plume had reached such a height.
The normal cruising altitude of aircraft is about 10 kilometres.
Plume went straight from being a submarine event to an eruption cloud reaching the lower boundary of the Stratosphere, this is not very common for this type of volcano.
??Normally lower-level plumes are seen from submarine eruptions.
Eruption and submarine hydrothermal activities often cause water discoloration in the area, and during eruption, the volcano has built several temporary new islands.
Submarine volcanoes
Submarine volcanoes are erupting basaltic lavas and new crust material is actively formed with substantial piles of pillow lavas.
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.