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Volcanoes,earthquakes,andtornadoesallcancauseenormousdamage,andpredictingwhereandwhentheywillstrikeisofgreatimportance.VolcanologistDr.MarieEdmondshasdevisedsensorsthatmonitortheundergroundactivityofmagmatobetterpredictfutureeruptionsontheCaribbeanislandofMonserrat,thesiteofthemassive1995eruptioncapturedforthisfilm.GeophysicistDr.RossSteinstudiedtheearthquakerepairrecordsinIstanbul'sHagiaSophiaoverthecenturiestofindcluesaboutthehistoryofearthquakesinTurkey.HediscoversapatterninquakesalongthelongNorthAnatolianFaultsystem,includingthemassivelydestructivequakeatIzmitin1999,andpredictsthenextearthquakejustafewmilessouthofIstanbul.Dr.JoshuaWurmanandhisteamchasetornadosintrucksequippedwithDopplerradarinanattempttoprobetheinteriorofatornadojustasitisbornddd
