Question

What are some of the lessons learned from the 2011 Japan earthquake and subsequent tsunami in terms of estimating the earthquake hazard in the region, tsunami preparedness and response to the disaster?

Answer 1

Tsunamis are the rogue waves which are caused due to disruption of ocean basin and displacement of heavy volume of water. It may be caused due to volcanic eruption, turbidity currents, under water explotions.

2011 earthquake in Japan was lesson to nations around the world who had lead their development compromising environment. Earthquake of japan which lead to tsunami in 2011 had a magnitude of 9.0. this caused nuclear melt down of site at Fukushima and caused further damage.

critical component of tsunami management includes installing early warning systems. which had a good impact on managing earthquakes causing tsunamis in tackling loss of human lives.

engineering structures in japan follow a code of construction which estimates the severity of vulnerability at the place . so the structures are resistant to earthquakes. land use policy must be designed in order to reduce vulnerability.

structural solutions are constructions which are out in place to obstruct the flow of tsunamis waves, observe their excess energy and reduces the velocity of waves. ex: tsunami walls, water breaks, dykes.

natural protection against tsunamis such as mangroves, coral reefs which act as wall of protection should be protected.

climate change which triggers the disasters vulnerability must be tackled with at most importance.

Awareness among people and knowledge of the situation can act as a shield in the battlefield because rapid action of citizens can save lots of lives which is a major loss.

though many earthquakes and tsunamis have affected these islands of japan in the past these disaster has given many lessons not only to japan but also to world nations.