Page 178 - Super Earth Encyclopedia
P. 178

AVALANCHE



                    OF FIRE




                     POMPEII






                   Mount Vesuvius in Italy is one of the world’s most
                   dangerous volcanoes. This was proved nearly 2,000 years
                   ago, when an explosive eruption hurled a vast cloud of
                   volcanic gas and ash high into the sky. As people ran for
                   their lives, parts of the ash cloud collapsed and surged
                   downhill in high-speed avalanches of lethally hot gas
                   and rock. These pyroclastic flows overwhelmed the
                   nearby cities of Pompeii and Herculaneum, killing
                   thousands of people within seconds, and burying
                   them in deep layers of ash.



                                                 AT A GLANCE

                                               •  LOCATION  Near Naples in
                                                  southern Italy
                                               •  VOLCANO TYPE  Stratovolcano
                                               •  ERUPTION DATE  79 ce
                                               •  ERUPTION TYPE  Explosive, with
                                                  pyroclastic flows








                    STATS AND FACTS


                                     MOUNT VESUVIUS       BURIED IN ASH
                    Traces of about 1,500     Since 79 ce,         Animals were
                    people buried by the      Mount Vesuvius       buried in ash, too,
                    eruption have been        has erupted          including a dog
                    found in Pompeii.         about 36 times.      guarding the house
                                                                   of its owner.
                    Their bodies left   TEMPERATURE  gas and rock had a temperature
                    cavities in the ash,
           DISASTER ZONES  used as moulds to   °F    100  of up to 572°F (300°C).
                                                      The pyroclastic flows of hot
                    which excavators have
                    create plaster casts.
                                              °C
                                                             200
                                                                     300
                                                     212
                                                                     572
                                                             392
                     ASH CLOUD WAS
                         UP TO
                         19
                         MILES
                        (30 KM)
        176              HIGH





   US_176-177_Pompeii.indd   176                                                                                                     01/03/17   1:39 pm
   173   174   175   176   177   178   179   180   181   182   183