Hazardous Environments Flashcards
Constructive Plate Boundary
Two continental plates
Plates move apart
Earthquakes and shield volcanoes can form
Destructive Plate Boundary
Continental and Oceanic
Plates pushed together
Earthquakes, composite volcanoes, and tsunamis can form
Conservative Plate Boundary
Any type of plate
Plates slide together in same direction
Only earthquakes can form
Collision Plate Boundary
Continental and Continental
Plates pushed together
Only earthquakes can form
Composite Volcanoes
Formed on destructive plate boundary
Violent eruptions
Thick, slow-moving lava
Narrow with steep sides
Layers of ash and lava
Shield Volcanoes
Formed on constructive plate boundary
Gentle eruptions
Thin, quick-moving lava
Wide with gentle slopes
Only layers of lava
Coriolis Force
Circulatory motion of air due to rotation of Earth
Vortex
Spinning high winds and heavy rainfall
Wind Shear
Small changes in wind speed and direction
Conditions needed for tropical storm to form
Warm sea temperatures (>27C)
Tropics for high temp and humidity
Low air pressure
Strong winds
What scale is used to measure the magnitude of a hurricane?
Saffir-Simpson Scale
What scale is used to measure the magnitude of a earthquake?
Richter Scale
Moment Magnitude Scale (MMS)
What instrument is used to measure an earthquake?
Seismometer
What scale is used to measure the magnitude of a volcano?
VEI (Volcanic Explosivity Index)
What instruments are used to predict a volcanic eruption?
Tiltmeters
Thermal imaging
GPS satellites