forced out of the volcanoes chimney. forming a column that rose 43 kilometers into the air. the earth shook and the volcano growled. nobody there knew what that meant nor that they only had a few hours left to live. if a fire after about 2 or 3 hours eruption called them a completely collapsed in on itself and of float down the slopes of a volcano in so-called pyra clastic currents $4.00 to $500.00 degrees in temperature and moving at between 10200 kilometers an hour of these currents destroy everything in their path this is what caused the more than 10000 direct