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when 2 oceanic plates move toward(converge)each other they form a lain of VOLCANIC ISLAND ARC.when 2 continenatl plates move toward(converge)each other they form MOUNTAIN BUILDING.
The volcanic activey under the crust causes the tectonic plates to move
Volcanic activity happens with the gases saved and stored build up and explode. =] ~Anna 6th Grade California Volcanic activity happens with the gases saved and stored build up and explode. =] ~Anna 6th Grade California
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When two plates move apart it forms a hole but new crust is formed.
As the plates rub against each other, they cause the ground to move, creating an earthquake or a volcanic eruption.
Step back from the edge of the rim!
Irregularity of the plates as they move against each other, very limited knowledge of lava flow, and a lack of understanding about how exactly Vulcanism occurs.
when 2 oceanic plates move toward(converge)each other they form a lain of VOLCANIC ISLAND ARC.when 2 continenatl plates move toward(converge)each other they form MOUNTAIN BUILDING.
there is an eruption thus causing the plates in the earth move.
From Volcanic Eruptions and when tectnotic plates move.
Most volcanic ash do travel in the direction of the prevailing wind. But they do initialy move randomly after eruption.
They move
There are plates that are always shifting around in the ground. They move 1cm every day. When the plates collide,they make a big BOOM which cause the things in the volcano to heat up. Then the heat pushes everything to the opening in the volcano which causes it to erupt and shoot out.
The Earth's crust is split up into plates, I think there are 8 in total, on the borders of these plates are volcanoes, these plates can move in various different ways, sometimes crashing head on, moving apart, one sliding on top of the other, depending on which movement, there can either be a volcanic eruption or an earthquake.
Oceanic crust is forced under continental crust and melted into lava because of the friction and heat. The lava is then pushed upwards through a volcano, causing a volcanic eruption. The plates sliding also causes violent earthquakes.
An Earthquake happens.