Stromboli

Based on those data which have reached us since ancient times, we have to conclude that the mountain did not change its character, perhaps even over 3000 years, it has been in continuous periodic activity, but does not produce strong eruptions. Right cone of this volcano, wearing light clouds of smoke, known to everyone who drove from Naples to Palermo or Messina. Gore reaches 900 m in height (available figures fluctuating between 853 and 979 m) crater located about 300 meters below the summit, has long black slag its bottom lay at 100 m below its edges, and only in 1889 witnessed the first change, which we say more. Volcanic activity is detected by means of special holes in the bottom of the crater, known as Bock, number and location of recent changes: sometimes there is one Bocca, sometimes even 6 - 7. From one burst pairs with a whistle and a hiss, which resemble the sound of a moving locomotive, the other pours molten lava, usually on the bottom of the crater. But the most remarkable holes emit semi-liquid viscous lava. From time to time their surface swells and exploded off huge amounts of vapor. Pair carries with incandescent lava clots and pieces of slag and throw them up a few hundred feet. When this eruption stops, the bokken again begin to gather couples bloat lava and tear it, and themselves go up. Thus the volcanic activity is rhythmic in nature, although not as much right as previously thought. Explosions occur at intervals of approximately 1 to 20 minutes. Most of the volcanic bombs falling back into the crater. It is safe to stand on its edge and watch all the changes of volcanic activity. At night, this phenomenon is observed from a distance, is an eyeful, with each explosion appears glowing lava and clouds of vapor illuminates with bright red flames, the glow gradually fades, but after a few minutes again reaches the same brightness. This is a wonderful phenomenon that is visible from all sides over a hundred English miles, reported Stromboli peculiar name of "Lighthouse Mediterranean." Balance of volcanic activity of Stromboli, which exists for thousands of years, and expressed a number of rhythmic vzrgoov - an extremely interesting phenomenon. We are used commonly associated with volcanoes in view of the right menacing eruptions, quite opposite to this age-old balance. Stromboli activity to such an extent settled that already paltry pressure changes cause significant changes in her: the explosions of the volcano are in close connection with the height of the barometer. Nearby residents know that during shirokko they are amplified and become more frequent, and before the storms and bad weather increases the number of emitted smoke. These symptoms, confirmed by centuries of experience, serve as a guide for sailors. Therefore, even in times of classical antiquity gray volcanic activity "Aeolian Islands" was a known connection with the movements of winds and weather changes and even then the periodic explosions of Stromboli were dependent on meteorological phenomena. The reason for this connection is this: with a strong atmospheric pressure, the harbinger of good weather, the couple must overcome a greater external resistance, and therefore at a low position barometer explosions occur frequently. On the ground, little is known volcanoes in a state of continuous activity, such as those found would be correct explosions, like Stromboli, is not there at all. You can specify the volcano Asamayama in Japan, which after a strong eruption in 1783, operates continuously. Further mention should be made volcano Sioa in the Moluccas, tofu Islands Friendship and Masaya, Nicaragua. But perhaps the most famous volcano of this kind is a huge Sangay in Ekuadore, reaching 5,223 m in height and referred to Alexander von Humboldt in his "Cosmos." In 1849 on this huge mountain, located in a remote area, raised Sebastian Wisse, within an hour he watched the 267 bombings, in which the volcano threw out smoke, ash, lapilli, and large stones, however, recently a rigorous sequence of explosions was broken, and they now occur at intervals of several hours. In the last decade, something similar happened to Stromboli. In November 1882, in this calm the active volcano and earthquake subterranean rumble was heard, not known until the force. On the wall of mountains called Shyarra was formed at 100 m below the crater five lateral Bock, with terrible force they threw stones and ashes. In December new Bock closed, and the former crater began its normal operations. In October of 1888 and throughout next year, Stromboli has intensified, the more it attracted everyone's attention that at the same time, there were eruptions on the island of Volcano. Continuous rumble and shaking accompanied by the formation of new side-cones, basaltic lava poured out even, which until then had happened at Stromboli. However, according to Mer-kali, there are several ancient lava flows of this volcano. The same researchers have shown that there is no intrinsic link between increased activity of Stromboli and Volcano eruptions occurring at the same time does not exist. To the south of Stromboli is a Panhard-in, and he is surrounded by a number of small islands - Bazilutstso, Datta et al, which is commonly regarded as the remnants of a large central volcano. Currently, these islands are underwater solfataru.