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No.2 #2


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No.2 #2

  1. 1. The earthquake of NewZealands Kermadec Islands s1180040
  2. 2. About the earthquakes● Magnitude was 7.8● It was east 161 kilometers ○ Centered of Raoul Island ○ Some 920 kilometers south of Tonga● Its epicenter was at a depth of 20 kilometers
  3. 3. About the earthquakes (2)● Tsunamis warning ○ The Kwemadec Islands ○ New Zealand ○ The Pacific nation of Tonga● It announced PTWC ○ PTWC - Pacfic Tsunami Warning Center
  4. 4. About PTWC● Invested by NOAA● Announces tasunamis warning● It is no mistake ○ Tsunamis moved ocean take a long time ○ It has a thinking time because of this● It used DART system
  5. 5. About DART system● DART - Deep-ocean Assessment and Reporting of Tsunamis ○ It is a system of PTWC ○ It tells full information about tsunamis ○ It operates continuously for two years ○ Its buoy is exchanged every year● Tsunamis forecast and warning was very improved for this system
  6. 6. About Kermadec Islands● Location ○ North-northeast 1000 kilometers from New Zealand● Type ○ Volcanic islands ○ New Zealand territory● The biggest island is Raoul Island
  7. 7. About Raoul Island● There are many cliffs● There are coral reefs around sea● Its volcano is fertile ○ This name is Raoul mountain ○ This altitude is 516 meters
  8. 8. Conclusion● The earthquake ○ East 161 kilometers of Raoul Island ○ Magnitude was 7.8 ○ Epicenter was at a depth of 20 kilometers● Raoul Island ○ North-northeast 1000 kilometers from New Zealand ○ Volcanic island ○ New Zealand territory