What will happen if the earth gets angry? Earth: If I feel "angry" about the volcanic eruption.

On March 27th this year, the Barina volcano in kamchatka peninsula, Russia suddenly erupted after nearly 250 years of silence. CCTV reported that when the volcano erupted, a column of volcanic ash with a height of five or six kilometers flew over kamchatka peninsula, and even traces of volcanic ash could be seen on satellite maps.

2065438+In February 2006, photographer Gabriel Barathieu went deep into the Fuernas volcano in French reunion island and took close-up photos of its eruption.

Volcanic eruption is related to the recharge and accumulation of underground magma.

Why did the volcano suddenly erupt? According to the Science and Technology Daily, research shows that small and frequent volcanic eruptions are caused by magma replenishment activities, and the process of magma replenishment will bring pressure to the magma chamber fence. When the pressure of magma chamber fence reaches the breaking point, a small-scale volcanic eruption will occur; Larger and lower frequency volcanic eruptions are caused by the slow accumulation of underground low-density magma.

Volcanic eruption will have a great impact on human society.

According to Yang Guang. Com, when a volcano erupts, volcanic gas and volcanic ash will enter the atmosphere, which will have an impact on climate and air transportation.

Some studies have said that strong volcanic eruptions in high latitudes can affect the global climate system for many years. China News Network pointed out in the report that scientists believe that if a large-scale volcanic eruption occurs in the high latitudes of the northern hemisphere in summer, the temperature in the northern hemisphere will drop significantly; In the 8-9 months after the volcanic eruption, the circulation of the atmosphere and the Pacific Ocean current may change, weakening the trade winds in the central and western Pacific Ocean and producing an effect similar to the El Ni? o phenomenon. For example, the World Wide Web reported that the Laki volcano in Iceland erupted in 1783. Volcanic activity at that time not only changed the local climate pattern, but also caused many deaths on the British island, reduced agricultural production in western Europe and spread famine.

At the same time, volcanic ash will also have a far-reaching impact on the air transport industry. International online mentioned that experts believe that volcanic ash smoke mainly comes from volcanic sediments and magma, which can float to an altitude of 8000 meters to form volcanic ash clouds. The height of volcanic ash cloud is just the height of jet airliner, and a large number of smoke particles will block the airflow valve of the aircraft, causing engine failure; Volcanic ash contains glass particles and rock powder. Once it adheres to the surface of aircraft engine blades or fuselage, it will lead to engine shutdown and fuselage damage, which will lead to major aviation accidents. Smoke and dust aroused by volcanic ash may also threaten all sensors outside the plane. In the past 20 years, there have been more than 80 aircraft failures caused by volcanic smoke. After the volcano erupts, it will affect air traffic for up to 6 months.

Although the volcanic eruption will bring different degrees of disaster to Yang Guang. Com also mentioned that volcanic eruption can also create rich mineral resources, land resources, energy and colorful natural landscapes for human beings.

Although there is no modern volcanic activity in China, Cenozoic volcanoes are widely distributed and may erupt.

According to Qilu Evening News, natural disasters in China mainly include meteorological disasters, earthquake disasters, geological disasters, marine disasters, biological disasters and forest and grassland fires. Almost all natural disasters occur in China, except modern volcanic activity.

Although there is no modern volcanic activity, Cenozoic volcanoes are widely distributed in China. According to Guangming Daily, China is located in the southeast of Eurasia plate, between Pacific plate, Indian plate and Siberian plate, so China's volcano belongs to continental margin and intraplate volcano. The distribution of volcanoes is related to the edges of two plates: one is that the Pacific plate subducted westward, forming a large number of volcanoes in eastern China; On the other hand, influenced by the collision of Indian plates, the distribution of volcanoes in the Qinghai-Tibet Plateau and its surrounding areas was formed.

According to Liu Ruoxin, founder of active volcano monitoring and research in China, Changbai Mountain is the best-preserved Cenozoic multi-genetic compound volcano in China, which has erupted at least five times in the last 10,000 years.

Especially the eruption more than 800 years ago was the biggest volcanic eruption event in the world in the past two thousand years.

So will Changbai Mountain volcano erupt? Japanese scholar Taniguchi Hiroshi summarized the research results and said that Changbai Mountain was affected by the plate movement caused by the Great East Japan Earthquake, and the probability of eruption by the end of 20 19 was 68%, and the probability by the end of 2032 was 99%.

(Wen Yuanhao) This article is scientifically checked by Bu Yong, an associate researcher at China Institute of Science Communication.