Quiz
Pinatubo
This quiz has question types that open in the usual player.
Questions in this quiz (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- A1991
- Bdestructive
- Crhyolite
- Dviscous
- E6
- F77
- GPVO
- Hseismographs
- ICOSPEC
- Jtiltmeters
- Kvolcanic hazard map
- L6
- Mpyroclastic flows & lahars
- N30
- O200,000
- Pyanya
- Q10
- RMt. St. Helens
- S25 cm
- T50,000
- U600,000
- V140
Information
- Description
- Quiz on Pinatubo case study
- Author
- Sophie Struckmey
- Language
- English
- Views
- 14
- Tags
- Rating
- No ratings yet Rate this quiz