DRRR Reviewer

• Volcano

  • Opening in Earth's crust that allows the energy to escape to the surface
  • Is a rupture in the crust of a planetary-mass
  • There are volcanoes because Earth's crust is broken into tectonic plates.
• Lahar


  Mixture of water, powerful enough to carry away trees, boulders, and logs, can bury buildings and houses
• Ash Fall


  Composed of bits and pulverized rocks, can cause respiratory diseases such as: asthma, bronchitis, and emphysema
• Pyroclastic Flow


  Fast moving rocks and gasses, very high temp, can easily destroy man made structures, contains high-density mix, moves at very high speed down volcanic slopes
• Ballistic Projectile


  Rock fragments ejected from volcano, can travel 5km or even further, like cannonballs
• Volcanic Gas


  Consist of sulfur dioxide and sulfide, restricted, also causes respiratory problems and other health risks
• Lava Flow

  Molten rocks, can cause forest fire
• Trenches

  Deepest part of ocean floor
• Transform Boundaries


  Where crust is neither produced nor destroyed
• Convergence


  Can occur between an oceanic and a largely continental plate, or between two largely oceanic plates, or between two largely continental plates
• Signs of Impending Volcano

  • Increase in frequency of earthquakes
  • Deformation in the ground
  • Landslide and rockfall
  • Drying up of springs and freshwater
• Top provinces at risk

  • Camiguin - highest risk
  • Sulu - second highest risk
  • Albay
  • Sorsogon
  • Bataan
• Precautionary before an eruption - Stay updated with the local news.

  Precautionary during an eruption - Follow evacuation orders by local authorities and remind family members of disaster plan.

  Precautionary after an eruption - Wait for an announcement from authorities.