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Later eruptions
- 1.
- 2. • Eruptions Global •Eruptions Local
- 3. Jomon period • Fourbig eruptions • Lots of stones • Ash • Both east and west
- 4.
- 5. Looking back about2,300 years
- 6. It’s a prettybig area
- 7. A bit ofmud
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 15. The east facecollapsed
- 16.
- 17.
- 18. Mud flows arenot good
- 19. They can bevery, very bad
- 20.
- 21.
- 22.
- 23. 6 meters ofmud
- 24. Only 6 peoplekilled by the eruption
- 25. Mud killed 1500people
- 26. Nevada del Ruiz,Colombia
- 27. 1985, mud flowkilled 20,000 people
- 28. What causes it? •Heavy rainfall • Lake bursts • Snow melting • Glaciers melting
- 29.
- 30. Spirit Lake afterthe eruption, October 1980
- 31.
- 32.
- 33.
- 35.
- 36. It would definitelyinterfere with our lives
- 37. In a bigway
- 38.
- 39. Jougan eruption • Jouganera • AD 859 • To • AD 878 • AD 869 – huge earthquake and tsunami • Devastates the coastal area near Sendai
- 40.
- 41.
- 42. … there wasjust one huge lake here
- 43. … Not thesethree, Saiko, Shojiko, and Motosuko
- 44. Take a lookat these sea level figures
- 45. Yamanakako is highup and shallow
- 46. Kawaguchiko is lowdown and shallow
- 47. The other threehave different depths
- 48. But look –the same height!
- 49.
- 50. AD 864 –huge eruption • Gigantic eruption on the north side • Lots of lava • Eruption lasted 10 days • Ash thrown into Tokyo Bay • Some of the lava flowed into the giant Senoumi Lake • Split it up
- 51. Aokigahara Lava flow •This huge lava flow is now covered by a gigantic forest • The Aokigahara forest • The sea of trees • 青木ヶ原樹海
- 52.
- 53. The sea oftrees
- 54.
- 55. The forest flooris volcanic rock and soil
- 56.
- 57. Easy to getlost
- 58. Difficult to findyour way out
- 59. And it’s nowthe subject of a movie
- 60. Although people sayit’s not very good!
- 61. Any publicity isgood publicity
- 62. And people likecreepy stories
- 63. So more touristswill probably come
- 64. There was abook
- 65.
- 66. Probably a longtradition
- 67. A place toabandon the old (or very young)
- 68.
- 69. Maybe you shouldn’tgo there
- 70. If you arechicken, like me
- 71.
- 72.
- 73. Aokigahara is thesecond most popular …
- 74.
- 75. After the GoldenGate Bridge
- 76.
- 77. Aokigahara is definitelycreepier
- 78.
- 79.
- 80.
- 81. Biggest earthquake inJapan’s history
- 82. At least until2011
- 83. Followed by ahuge eruption
- 84. About seven weekslater
- 85. That created thiscrater
- 86. Sent ash anddust as far as Tokyo and beyond
- 87. 1707 earthquake • October28th • The Fuji eruption? • December 16th • Is there a connection? • Maybe
- 88. 1707 earthquake • Magnitude8.6 • Great Kanto earthquake (1923) • Magnitude 7.9 • 2011 earthquake? • Magnitude 9.0
- 89.
- 90.
- 91.
- 92.
- 93. Maybe our houseswill stand up a lot better today
- 94.
- 95.
- 96. Which might bemore of a problem
- 97.
- 98. In the ninthcentury
- 99. Lava flow wasso monumental …
- 100. It split upa huge lake
- 101. And created ahuge forest!
- 102. What can wedo?!
- 103.