Ontake - bad response (comms) Flashcards
1
Q
Hazards
A
- pyroclastic flows
- ash cloud
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
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)
4
Q
during
A
- 1000 rescue workers hampered as volcano continued to shoot toxic gas, rocks and ash
5
Q
after
A
JMA monitor Ontake 24/7 (japan meteorological agency)