The spewing forth of lava from active volcanoes is known as volcanic eruption. During an eruption, magma from beneath the Earth's crust rises to the surface, where it can flow as lava or be expelled as ash and gases. This process can vary in intensity, leading to different types of eruptions, such as effusive lava flows or explosive eruptions. The resulting lava can create new landforms, such as lava plates and volcanic islands.
An active volcano is like a giant furnace, constantly rumbling and spewing fiery lava.
A planet with fewer active volcanoes would have more craters, as the ash and lava from volcanoes will cover existing craters.
A planet with active volcanoes will have fewer craters, as older craters will tend to be buried by lava and ash.
Lava emissions are found with all active volcanoes, although some volcano emit more lave than others.
Active volcanoes on islands create more land area through the deposition of lava, ash, and other volcanic materials. When volcanoes erupt, the flowing lava solidifies and cools, forming new land masses on the island. Over time, repeated eruptions can contribute to the growth and expansion of the island.
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spewing out lava, destroying, and bringing new life
An active volcano is like a giant furnace, constantly rumbling and spewing fiery lava.
A planet with fewer active volcanoes would have more craters, as the ash and lava from volcanoes will cover existing craters.
Both the Colima (19.512727, -103.617241) and the Popocatepetl (19.022222, -98.627778) are the most active volcanoes in Mexico right now (Dec 2016), spewing ash plumes and lava; however none of them have had a major eruption for the last decade or so, which would endanger millions of people around both volcanoes.
A planet with active volcanoes will have fewer craters, as older craters will tend to be buried by lava and ash.
All volcanoes do have lava (magma), mostly in their young and early (ie, active) stages.
erupting
Two challenges that volcanologists face investigating volcanoes are access to the volcano and the heat involved. Volcanoes can be very unpredictable, spewing out gas, rocks, and fiery balls of lava. For those that can get close enough to the crater or lava flows, the heat can be enough to stop them in their tracks.
Lava emissions are found with all active volcanoes, although some volcano emit more lave than others.
No, volcanoes do not need lava to be volcanoes.
A ring of volcanoes surrounds the northern Pacific Ocean, some of which are active and spew lava and others of which are dormant mountain peaks.