Tectonic hazard Flashcards
What are the four major layers in earths structure
Crust, mantle, inner core, outer core
What’s the thickest layer
Mantle
What layers are completely solid
Crust and inner core
What are the two different types of crust
Continental and oceanic
What crust is more dense
Oceanic
What is the name of the process that causes the Earth’s tectonic plates to move?
Convection currents
How many different types of plate boundary are there
Convergent, divergent , conservative, collision
What direction do the plates move in at convergent plate boundaries
Towards each other
True or False? Volcanoes occur at conservative plate boundaries.
No they also move away from each other
Characteristics of sheild volcano
Wide and tall
Characteristics of sheild volcano
Narrow and short
What’s a hotspot
Region in the earth where heat rises
What’s the scale earthquakes are measured on
Richter scale
What’s magnitude
How much energy is released during an earthquake
What causes tsunamis
Under sea earthquakes at tech tonic plate boundaries
