Tsunami

What is Tsunami?

series of large waves in waterbody due to displacement of large volume of water

causes of Tsunami

  • undersea earthquake at subduction zone
    • Indian Ocean 2004 (Sunda Trench)
  • Volcanic eruption
    • 1883 Krakatoa eruption (Indonesia)
  • Submarine landslides
    • Lituya Bay, Alaska 1958
  • Asteroid impact
    • Chicxulub asteriod
  • Glacial caving

Consequence of Tsunami

  • loss of human life, health crisis (water borne disease), forced migration, psychological trauma
  • damage critical economic / social infra, livelihood of fishermen, agri, tourism, energy infra (Fukushima)
  • coastal vegetation, salinization, biodiversity loss

Use EWS, coastal zoning regulation, public awareness, resilient infra / community, sendai framework.