What causes an increase in the number and intensity of small earthquakes before an eruption?

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Biology

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22 July, 16:32

What causes an increase in the number and intensity of small earthquakes before an eruption?

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Essence Rivers · Answer 1

Before an eruption, scientists look for gases and changes in the volcanoes shape, before an eruption the number and intensity of small earthquakes increases, this is caused by the movement of magma, prior to the eruption. Magma forms in the mantle and is a result of high temperature and low pressure.