at 1 am mount Vesuvius erupted. it had erupted because the pressure exerted by the molten rock beneath the earths crust increased to such a point that it had to find a way out an within seconds a gigantic cloud of ash formed high above the volcano. the cloud pushed 14 km into the atmosphere, forced up by a powerful column of gas and debris, the cloud spread across the black sky like ink. it was so dense it blocked out the sun and turned the sky above Pompeii to night then it started to rain ash and solid lava
at 2 am part of the column collapsed. The collapsing column sent a wave of super-heated gas and dust surging down the sides of the volcano. This was known as pyroclastic current temperatures inside the explosive gas where over 500 degrees Celsius and traveled at 350 kilometres an hour. A second pyroclastic currents thunderd down the sides of the volcano, closely followed by a third.
at around dawn a shower of ash and debris falling began to ease and the survivors thought they where over the worst but that was a cruel deception. many people who fled returned to gather money and valuables. At around 7:30 am the column around Vesuvius collapsed again. A fourth pyroclastic current surged down the sides of the volcano and this time gas and debris raced over the ground at even higher speeds and this time it did reach Pompeii.