The volcano is a cone-shaped pad which is a fissure in the earth's crust.
The cone was formed with the ' accumulation of solidified lava and ash that come out of the' crater that is located at the top of the volcano. When it comes out is an ongoing lava eruption . The volcanoes are divided into two types or effusive eruptions. The effusive volcanic eruptions are harmless. In fact, the lava flows slowly leaving the area all the time to escape. Instead
eruptive volcanoes are much more dangerous, because the lava comes out the volcano as a fountain of water, destroying a much larger area such effusive. Some times we
are also secondary volcanic phenomena: Geyser, fumaroles and hot springs.
The image was taken from sitowww.raicine.ra.it
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