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Pinatubo

Sophie Struckmey 1 Frage

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  1. 1The eruption took place in [blank_start]1991[blank_end], on a [blank_start]destructive[blank_end] plate boundary. The type of lava was [blank_start]rhyolite[blank_end], which is highly acidic and thick or [blank_start]viscous[blank_end]. The eruption killed [blank_start]6[blank_end] people initially, but later lahars killed [blank_start]77[blank_end] people. Monitoring was done with help from the USGS, which helped set up the [blank_start]PVO[blank_end].
    Monitoring:
    - movement of magma tracked by string of earthquakes beneath volcano. This is monitored using [blank_start]seismographs[blank_end].
    - CO2 levels measured using [blank_start]COSPEC[blank_end], rising levels indicate rising magma
    - Swelling of the summit/changes in mountain profile monitored using [blank_start]tiltmeters[blank_end]
    Mitigation:
    - Informed civil defense officials of potential hazard using [blank_start]volcanic hazard map[blank_end]
    - Devised a [blank_start]6[blank_end] point scale, alert levels for evacuation
    - video of [blank_start]pyroclastic flows & lahars[blank_end] to educate public about danger
    The main eruption sent ash cloud [blank_start]30[blank_end] kilometers into the air
    [blank_start]200,000[blank_end] people were displaced
    Primary impacts:
    Ash combined with rain from typhoon [blank_start]yanya[blank_end]
    [blank_start]10[blank_end]x the size of [blank_start]Mt. St. Helens[blank_end]
    Water contaminated
    Angeles covered in [blank_start]25 cm[blank_end] ash
    [blank_start]50,000[blank_end] ha crops destroyed
    [blank_start]600,000[blank_end] unemployed
    Long term:
    Deposited material mixed with monsoon rain to form lahars, which continued to result in death
    [blank_start]140[blank_end] evacuation centres
    1. A1991
    2. Bdestructive
    3. Crhyolite
    4. Dviscous
    5. E6
    6. F77
    7. GPVO
    8. Hseismographs
    9. ICOSPEC
    10. Jtiltmeters
    11. Kvolcanic hazard map
    12. L6
    13. Mpyroclastic flows & lahars
    14. N30
    15. O200,000
    16. Pyanya
    17. Q10
    18. RMt. St. Helens
    19. S25 cm
    20. T50,000
    21. U600,000
    22. V140

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Beschreibung
Quiz on Pinatubo case study
Sprache
English
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