The phenomenon you are describing is called a pyroclastic surge. This occurs when hot volcanic material, such as ash and gases, shoot high into the atmosphere in an explosive eruption.
It can be very dangerous for people living near volcanoes since these surges travel at speeds of up to 700 km/h (435 mph).
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The phenomenon you are describing is called a pyroclastic surge. This occurs when hot volcanic material, such as ash and gases, shoot high into the atmosphere in an explosive eruption.
It can be very dangerous for people living near volcanoes since these surges travel at speeds of up to 700 km/h (435 mph).
Explanation:
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