A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that
allows hot lava ... Erupting volcanoes can pose many hazards, not only in the
immediate vicinity of the .... Like ...
Volcanoes can remain inactive, or dormant, for hundreds or thousands of years
before erupting again. During this time they can become covered by vegetation ...
Volcanic activity occurs at two types of plate boundaries: mid-ocean ridges and
subduction zones. At mid-ocean ridges, basaltic eruptions produce new sea-floor
Some volcanic eruptions are explosive and other are not. How explosive an
eruption is depends on how runny or sticky the magma is. If magma is thin and ...
Eruptions. Well that depends on the volcano . Some volcanoes erupt very often (
and some like Kilauea almost never stop). On the other hand, some volcanoes ...
Volcanic eruptions occur only in certain places and do not occur randomly. This
is because the Earth's crust is broken into a series of slabs known as tectonic ...
Find out what the earth make-up is, and how extreme pressure build up inside
the earth forces molten matter to be expelled out to the surface, causing a
Apr 10, 2015 ... Here are the countries most at risk of a deadly volcanic eruption, according ...
though the volcano did not erupt, according to historical accounts.
An extinct volcano is one which has erupted thousands of years ago and there's
no possibility of eruption. Why do volcanoes erupt? The Earth's crust is made up
Jan 5, 2015 ... The eruption of a volcano can be one of the planet's most destructive events —
spewing huge amounts of rock, gas and ash that can kill people.