The eruption of magma, gas and ash from the earth's crust. The eruption is usually the sign tell why know in advance, such as the earthquake in the area around the volcano was born to shudder, sound like thunder.Gas and steam is compressed. When the eruption, lava rock debris, dust, ash, volcanoes. Will be generated from the crater, or out of the side channel of the volcano. Or track split of the volcano."Lava" (Lava) lava to the earth's surface, high temperature to 1.200 ⁰ C flow along the slope of the area.
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