The Nishinoshima is a young volcanic island that is located off the coast of Japan in the Pacific Ocean. The scientists have found that it continues to form heat and lava, which is an evidence of continued growth. That fact was first discovered in 2013. Since mid-June of this year, the growth of the volcano is at the peak of its activity.
The researchers obtained images in a spectrometer with a NASA satellite, when a volcanic plume spread hundreds of kilometers to the north, and its column reached several thousand meters.
Short-wave infrared images made it possible to determine the apparent length of the bands, revealing the thermal characteristics of the erupting lava and the relative coolness of the dark ash plume.
The specialists of the Coast Guard of Japan transmitted to the scientists reports on observations of the volcanic island, as well as aerial photographs confirming activity on the volcano, which increased at the end of May.
The volcano began to erupt ash and lava with a great force, that energy is much more than in previous months. In early July, the volcanic plume rose to a height of 4700 meters above the sea level. And the very next day, the ash column rose to a height of 8300 meters.
These data exceed the highest activity indicators recorded in 2013 when an underwater volcanic eruption occurred. Volcanic fragments on this day were discovered at a distance of more than two and a half kilometers from the Nishinoshima.
The scientists have recorded that in the period from June 19 to July 3, the southern part of the coast increased by 150 meters. A satellite from the European Space Agency recorded a significant release of sulfur dioxide from the eruption.