earthquakes

• what is the study of earthquakes called?


  Seismology
• what is the thinnest layer of the earth?


  Crust
• what is the middle layer called?


  Mantle
• what are the two parts of the mantle?


  the upper mantle and the lower mantle
• what is the innermost layer of the earth called?


  the core
• what are the two parts of the core?

  outer core and inner core
• what is the mantle made up of?


  it is made up of magma
• the outer core is made up of?


  Molten iron and nickel
• the inner core is made up of?

  liquid iron
• what is an earthquake?


  it is the shaking of the ground.
• earthquakes happen when the crustal plates move past each other, causing the plates to slip?


  true
• what is the break of a fracture in the crust of the earth?


  fault
• what is an epicenter?


  the place is directly above the focus
• what is a hypocenter?


  the place below the ground
• what are the two types of earthquakes?

  plate tectonic earthquakes and volcanic earthquakes
• what is magnitude?

  the energy released by an earthquake
• what scale can you use when youre measuring the magnitude of an earthquake?


  Richter scale
• whatis the plate tectonic theory?

  the earth is broken into separate pieces called tectonic plates
• how does the divergent boundaries move?

  Apart
• how does the convergent boundaries move?

  they go towards each other
• how do transform fault bounderies move?

  Horizontally
• what is a plate tectonic earthquake?

  the movement of the plates
• what is the volcanic earthquake?

  magma rises