The deadly volcanic threat

volcanic threatSatellite observation of the entrails of the earth in the vicinity of New Zealand have shown that in the sea at the northern tip of the island is formed by magma chamber, which may soon produce a new volcano.

After New Zealand passed the Pacific fire zone – a strip of volcanoes and tectonic faults in 40 thousand kilometers. It encircles the Pacific Ocean, passing around the coast of North and South America to southern Alaska, then turns to Japan, the Philippines and Indonesia, and ends in the area of the island of New Guinea, New Zealand and the South-West Pacific.

It is in the Ring of Fire is the vast majority of the planet’s famous volcanoes. It happens 90% of all earthquakes in the world. The last eruption took place on the New Zealand recently – in 2012, Tongariro volcano awoke, and she played the role of Orodruin, the famous Mount Doom in kinosage Lord of the Rings.

Gemling Ian from the State Research Institute of New Zealand to Avalon found that in the near future the North Island of the archipelago, where all the centers of volcanic activity are found, can become the owner of a new volcano, studying the data collected by Envisat probe in the past decade.

In the northern part of the island and its surrounding waters of the ocean is the so-called volcanic zone of Taupo, where earthquakes and next to which are the largest volcanoes in New Zealand in recent years.

By studying the change in the height of the surface in this area, researchers have noticed that it rises up at a speed of 1.5 centimeters per year while the surrounding areas on the contrary, fall down at a speed of one centimeter per year. This rapid in geological terms the rise of soil means that, under the Taupo area has a new magma chamber, which is filled with light and relatively liquid streams of molten rock from the lower layers of the Earth’s interior.

The center of the chamber, according to calculations of scientists show is not on land but under water, a few hundred meters from the north shore of New Zealand, at a depth of 12 kilometers. Each year, the volume of this lava pool grows by 0.01 cubic kilometers, which is comparable to the growth rate of magma chambers in other relatively new and large volcanoes.

This discovery surprised Gambling and his colleagues, as volcanoes do not wake up in the vicinity of Taupe for at least 425,000 years. While scientists do not know when the tank will create the volcano, but they believe that the eruption will eventually take place. This focus, according to the measurements of the height of the surface, held in the 18th century, has been growing for three hundred years, and the rate of magma accumulation increased significantly, an increase of three times in the last 10 years.

Major cities and towns of New Zealanders, as they say the scientists, is located just 50 kilometers from this magma chamber, suggesting the need for a speedy investigation of the state of the volcano and evaluate the potential danger that it may carry for the residents of the archipelago.

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