Stromboli volcano, Explosion of light and lava.
A volcanic eruption is a violent emission on the Earth's surface of matter from the interior of the volcano. Except for the geysers, which emit hot water, and the mud volcanoes, whose matter, largely organic.
The eruptions are a consequence of the increase of the temperature in the magma that is in the interior of the terrestrial mantle. This causes a volcanic eruption in which the boiling lava found in the magma is expelled. It can generate melting of ice and glaciers, landslides, alluvium, among others.
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On the small island of the Stromboli volcano of just 12.6 square kilometers, north of Sicily, the bright explosions and expulsions of lava became a spectacle.
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From the top of this volcano you can see incandescent magma live. The ascent to the volcanic cone of Stromboli is made in the afternoon, to reach the eruptive mouths (200 m below the peak) at nightfall. The route, of about six hours, is not a Sunday walk, especially in the last section where the fine volcanic scum makes two steps back for each one that advances. However, the scintillating bursts with which the volcano receives the visitor compensate for any effort. The climb ends at 364 m above sea level. the crater, an immense funnel that expels constant fumaroles and from which sulfur vapors emanate between 100 and 200 ° C.
The eruptions are also characterized by other factors: temperature of the lava, its content of occluded gases, state of the volcanic duct, free chimney or clogged by solid matter, lava lake that opposes its thrust to the exit of magma from the bottom
Volcanic eruptions do not obey any rule of periodicity, and it has not been possible to discover a method to prevent them, although sometimes, they are preceded by seismic shocks and the emission of fumaroles. Its violence is related to the acidity of the lavas and the richness of these in occlusal gases. These reach high pressures and, when they overcome the resistance they encounter, they escape violently, giving rise to an explosive eruption. On the contrary, a basic lava is much more fluid and opposes little resistance to the release of its gases: the eruptions are less violent and can have a permanent character
Natural phenomena are changes produced in nature. Climate, as most scientists propose, should have some balance, and natural phenomena are part of it. Although, of course, some seriously affect humans
The international bibliography indicates that volcanic ash attacks mainly: the respiratory system; the skin and eyes, causing conjunctivitis or some other related disease. At the level of the upper respiratory system, it produces irritation determining rhinitis, pharyngitis, tonsillitis, laryngitis and worsening sinusitis. The direct effects on the lower areas would be determined especially by the size of the respirable particles. As the volcanic ash is constituted especially of SiO2, this substance can produce local irritation and develop silicosis. Patients with silicosis have high rates of tuberculosis. Ecuador has a very high prevalence of pulmonary tuberculosis according to the statistics of the Ministry of Health
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