volcanic eruption 2.0

• Types of Volcanoes

  • Cinder cone
  • Composite volcano
  • Shield volcano
• Most volcanoes are formed as a result of

  • Geological activities along the plate boundaries in the Pacific Ring of Fire
• Volcanoes


  Openings in the earth's crust where magma, ash, and gases escape
• Vulcan Point is the world's largest island within a lake, located in the Philippines
• Vulcan Point is situated on an island, which is located in a lake, within an island
• Vulcan Point is one of the cones of the active Taal Volcano
• Volcanism


  Connected with volcanoes and their volcanic activity
• Shield volcano formation


  Huge gently sloped volcanoes that exclusively erupt basaltic lava
• Cinder cone examples

  • Taal Volcano in the Philippines
  • Parícutin in Mexico
• Composite volcano examples

  • Mount Fuji in Japan
  • Mount Mayon in the Philippines
• Cinder cone formation


  Formed when volcanic cinder or blobs of congealed lava of basaltic composition come out from one vent
• Composite volcano formation

  Composed of an alternating layer of lava flow
• Inactive Volcanoes

  • Also called extinct or sleeping volcanoes
  • Expected to erupt again at some point despite being dormant for thousands of years
  • Volcanoes with no record of eruptions are considered as extinct or inactive
  • Their physical form since their last activity has been altered by agents of weathering and erosion with the formation of deep and long gullies
• Shield volcano examples

  • Volcanoes in the Hawaiian Islands such as Kilauea
  • Diamond Head
• 24 active volcanoes are located in the Philippines, with the majority in the island of Luzon
• Volcanism

  Phenomenon connected with volcanoes and their volcanic activity such as the movement of magma from the mantle to the surface of the earth
• Advantages and Disadvantages of Living Near Volcanoes

  • Risk of destruction to land by volcanic materials, landslides, pollution, and effects on weather
  • Volcanic materials such as lava and volcanic ash contain nutrients that enrich the soil, are useful in industrial and chemical uses, and serve as a source of heat energy
  • People living near volcanoes make a living from tourism
• Volcano


  A mountain that opens downward to a pool of molten rock below the surface of the earth
• Volcanoes may form from

  Melted crust, subduction as underwater volcanoes, or as hot spot volcanoes
• Types of volcanoes

  • Cinder cone
  • Composite
  • Shield
  • Lava dome