wk2

• International Space Station (ISS)


  A structure that orbits the Earth, through which they study our planet, its characteristics, and its different geological features and activity

  
• Formation of Mountain Ranges, ridges, volcanoes and trenches


  • Influenced by the different geological activities that happen in our planet
• Earthquake


  Shaking or trembling of the earth which is characterized by a sudden movement or vibration of the crust
• As rock masses shift into new positions

  The energy stored in the rock masses is transmitted onto the surface in the form of seismic waves which will then translate into an earthquake
• Kinds of Earthquake


  • Tectonic Earthquake
  • Volcanic
• Tectonic Earthquake


  When two tectonic plates move suddenly against each other, an Earthquake occurs
• Crust


  • Can be classified as oceanic and continental
  • When two continental crusts clash with each other through compressional stress, they could develop into mountain ranges
  • Plates are somehow affected by the convection currents that happen in the mantle of our planet

  
• Volcanic Earthquake


  • Occurs in the areas that are associated with volcanic activities
  • As the fluid magma rises to the surface, its pressures fractures rock masses and causes continues tremors
• Magnitude of an Earthquake


  • A seismograph measures the magnitude of an earthquake
  • Magnitude is the energy released by an Earthquake
  • For each increase of 1.0 in the seismograph, it is 10 times more powerful than the one before it
• Intensity of an Earthquake


  • A measure of how much damage earthquakes cause on the surface
  • The shaking is measured on the Modified Mercalli scale which was invented by Italian Scientist Giuseppe Mercalli in 1902