Ontake - bad response (comms) Flashcards

1
Q

Hazards

A
  • pyroclastic flows
  • ash cloud
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2
Q

Impacts

A
  • tourist resorts and hotels closed
  • 63 hikers killed
  • heat from eruption melted snow creating slides and flows
  • 250 trapped by pyroclastic flows
  • 50cm thick ash covered mountain
    – a thin layer of ash can make soil fertile
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3
Q

Prediction

A
  • extensive monitoring did not detect any warnings
  • only 10 mins before, immediate precursors detected, but no warnings given
    (phreatic eruption=hard predict)
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4
Q

during

A
  • 1000 rescue workers hampered as volcano continued to shoot toxic gas, rocks and ash
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5
Q

after

A

JMA monitor Ontake 24/7 (japan meteorological agency)

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