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    Cards (51)

    • What causes an earthquake?
      Movement of tectonic plates
    • Where do earthquakes mostly occur?
      Along the fault line
    • What can earthquakes cause?
      Great damage to properties and life loss
    • What factors affect earthquake hazards?
      Local topography, subsurface geology, groundwater
    • What is ground shaking?
      Vibration of the ground during an earthquake
    • What causes ground shaking?
      Faulting during an earthquake
    • What can ground shaking trigger?
      Liquefaction and landslides
    • What is ground rupture?
      Offset of the ground due to fault rupture
    • What happens during ground rupture?
      Fault rupture extends to the Earth's surface
    • What should you avoid when building near a fault?
      Avoid building across or near these hazards
    • What is liquefaction?
      Soil and groundwater mix during shaking
    • What happens to the ground during liquefaction?
      It becomes very soft like quicksand
    • What can liquefaction undermine?
      Foundations of buildings, bridges, pipelines
    • What is ground subsidence?
      Sinking or settling of the ground surface
    • What can cause ground subsidence?
      Settlement of low-density soils or underground voids
    • What can happen during ground subsidence?
      A large area of land can subside drastically
    • What generates a tsunami?
      Earthquake with magnitude greater than 7.0
    • What can a tsunami cause?
      Flooding extending inland by a thousand feet
    • What is a landslide?
      Movement of rock, debris, or earth down a slope
    • What can trigger a landslide during an earthquake?
      Soil slips on steep slopes
    • What are the natural signs of an impending tsunami?
      Severe shaking, unusual sea-level fluctuations
    • What should you feel during a tsunami warning?
      Severe shaking of the ground
    • What visual sign indicates a tsunami?
      Disappearance or lowering of sea water level
    • What loud sound might you hear before a tsunami?
      Loud roaring sound like a train
    • What can ground shaking cause in buildings?
      Objects to fall and injure nearby people
    • How does the severity of ground shaking affect structures?
      Increased severity can cause damage or collapse
    • What determines the intensity of ground shaking?
      Bedrock type, duration, distance from epicenter
    • What happens to structures built across a fault?
      They will be seriously damaged or collapse
    • What happens to structures adjacent to a fault?
      They acquire less damage than those across
    • What occurs when liquefaction happens?
      Ground acts like quicksand, weakening structures
    • What can happen to underground pipes during liquefaction?
      Pipes may rise to the surface
    • What can ground subsidence cause?
      Permanent flooding in the area
    • How can ground subsidence occur?
      Due to ground shaking or fault displacement
    • What can a tsunami destroy?
      Houses, uproot trees, and kill people
    • What can cause flooding during an earthquake?
      Overflowing from dams or broken rivers
    • What can landslides during earthquakes cause?
      Accidents from falling rocks and soil
    • How can earthquakes start fires?
      By breaking power and gas lines
    • What is an earthquake hazard map?

      A map showing potential earthquake effects
    • How do experts create earthquake hazard maps?
      By analyzing geographical features and seismic records
    • What regions in Region 3 are at high risk of earthquakes?
      Zambales, Tarlac, Pampanga, Nueva Ecija
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