Hazardous Environments Flashcards

1
Q

Constructive Plate Boundary

A

Two continental plates
Plates move apart
Earthquakes and shield volcanoes can form

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2
Q

Destructive Plate Boundary

A

Continental and Oceanic
Plates pushed together
Earthquakes, composite volcanoes, and tsunamis can form

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3
Q

Conservative Plate Boundary

A

Any type of plate
Plates slide together in same direction
Only earthquakes can form

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4
Q

Collision Plate Boundary

A

Continental and Continental
Plates pushed together
Only earthquakes can form

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5
Q

Composite Volcanoes

A

Formed on destructive plate boundary
Violent eruptions
Thick, slow-moving lava
Narrow with steep sides
Layers of ash and lava

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6
Q

Shield Volcanoes

A

Formed on constructive plate boundary
Gentle eruptions
Thin, quick-moving lava
Wide with gentle slopes
Only layers of lava

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7
Q

Coriolis Force

A

Circulatory motion of air due to rotation of Earth

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8
Q

Vortex

A

Spinning high winds and heavy rainfall

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9
Q

Wind Shear

A

Small changes in wind speed and direction

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10
Q

Conditions needed for tropical storm to form

A

Warm sea temperatures (>27C)
Tropics for high temp and humidity
Low air pressure
Strong winds

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11
Q

What scale is used to measure the magnitude of a hurricane?

A

Saffir-Simpson Scale

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12
Q

What scale is used to measure the magnitude of a earthquake?

A

Richter Scale
Moment Magnitude Scale (MMS)

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13
Q

What instrument is used to measure an earthquake?

A

Seismometer

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14
Q

What scale is used to measure the magnitude of a volcano?

A

VEI (Volcanic Explosivity Index)

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15
Q

What instruments are used to predict a volcanic eruption?

A

Tiltmeters
Thermal imaging
GPS satellites

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16
Q

What instruments are used to predict a tropical storm?

A

Satellite images
Weather instruments
Computer based prediction modelling