Meaning of Rash
What is a Rash:
An eruption can be the abrupt and violent emission of matter from the interior of the earth to the surface, or it can also refer to the appearance on the skin of grains, spots or vesicles, or to the grains or spots themselves. The word, as such, comes from Latin eruptio, eruptiōnis.
A volcanic eruption is a violent emission of matter from the interior of the Earth in the form of gases or boiling lava. It occurs through openings or cracks in the earth's crust that give rise to a geological formation known as a volcano.
The eruptions of volcanoes are a consequence of the increase in the temperature of the magma that is inside the earth. In general, they are unpredictable and can take place at any time, as they do not obey any type of periodicity.