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Be careful of changes in sea
TSUNAMIS HIS CENTURY THREAT
On September 29, 2009, a tsunami caused substantial 4 de 18
damage and loss of life in American Samoa, Samoa, and Tonga. The tsunami was generated by a large earthquake in the Southern Pacific Ocean. Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea. Out in the depths of the ocean, tsunami waves do not dramatically increase in height. But as the waves travel inland, they build up to higher and higher heights as the depth of the ocean decreases. The speed of tsunami waves depends on ocean depth rather than the distance from the source of the wave. Tsunami waves may travel as fast as jet planes over deep waters, only slowing down when reaching shallow waters. While tsunamis are often referred to as tidal waves, this name is discouraged by oceanographers because tides have little to do with these giant waves.
“Tsunamis are rare but extremely deadly waves. In the past 100 years, 58 tsunami incidents have claimed more than 2.6 lac lives, or an average of 4,600 per disaster. These death tolls have made a tsunami as the most dangerous natural disaster”.
The deadliest Tsunami ever was recorded in the Indian Ocean in December 2004. It caused an estimated 2.27 lac d e a t h s i n 1 4 c o u n t r i e s including India, Sri Lanka, Thailand, and Indonesia.
History of World Tsunami Awareness Day
After the 2004 deadliest
Tsunami in the Indian Ocean; The United Nations General Assembly designated 5 N o v e m b e r a s W o r l d Tsunami Awareness Day
from December 2015. The basic motive of this day is to increase the awareness about the Tsunami among over 700 million people live in low-lying coastal areas and Small Islands.
Meaning of ‘Tsunami’
The term ‘Tsunami’ is a Japanese term which means “harbour wave”. A tsunami is a series of giant waves caused by earthquakes or undersea volcanic eruptions and underwater landslides.
Tsunami waves can travel at the speed of 800 km/hour and its height can be 20 feet to 300 feet. The speed of tsunami waves depends on depth of the ocean . The speed of tsunami is fast in deep water while slow down when reaching shallow waters. Worth to mention that around 80% of tsunamis occur in the Pacific Ocean.
How Does a Tsunami Kill You?
I think we, as humans, often forget the sheer power of the world in which we live.
Most of our psychology has evolved to see the world in ways that may not be accurate. We adapt mental safety nets that let us believe in, or augment things that help us function better in our life. A sense of control, for example. I usually feel like I have some control over my life, or like my environment is a product of myself. It’s the way I want it, because it’s passive, and allows itself to be shaped by me. We get a false sense of security living in a secure civilization, never really experiencing something that is utterly beyond our control. But there are things beyond our control. Things which carry energy so powerful, our minds can hardly comprehend it.
