Tsunami is a series of waves in the ocean or sea, it can create a lot of havoc and destruction in the areas affected. It can occur because of some geological, activity which displaces large volume of water. Usually it is an earthquake occurring in coastal areas or near the seafloor, displacing volume of water on shores.
It can also cause by a volcanic eruption beneath the surface of water. Energy generated by an earthquake under the water, is released in the form of a series of waves. The waves are very powerful and can brush off everything that comes in the way.
The tsunami occurring in deep oceans is not as destructive, and do not rise much, as the one that is generated nearer the coasts causing giant waves to form and causing more destruction.
Let us discuss some of the major tsunamis of all times:
Tsunami of Lisbon, Portugal
In 1755, in Lisbon, Portuguese, around 9:30 in the morning the city was hit by an earthquake of 9 magnitudes on Richter scale. The core was the west-southwest of Cape St. Vincent, situated in the Atlantic Ocean.
There were three earthquake shakes; the shakes were so strong that it created 16 feet cracks in the earth. After 30 minutes, more destruction was made, when a tsunami hit the coast of Portugal.
There were two more tsunami waves followed. The waves almost reached as high as 98 feet. Eighty-five percent of its buildings had been destroyed and over 100,000 people were killed.
Historic Volcanic Eruptions
- Volcanic Eruptions
Volcano - it conjures up vivid, lucid images of red-hot lava spewing out of a looming mountain, like mountain of fireworks gone astray, bruising and charring everything that dares to come in its way.
Tsunami in Sanriku, Japan
On June 15, 1896 an earthquake came on the northeast coast of Honshu Island some ninety miles from shore.
It was of reading 8.5 on the rector scale, followed by a gigantic tsunami, hitting the northeast coast of Japan.
There was not much knowledge of the earthquake doing an overwhelming damage killing 26,000 people. The reason behind the lack of knowledge was the distance from shore and its nature.
Tsunami Messina, Italy
On the early morning of December 28, 1908, in Messina; Italy witnessed the deadliest earthquake in European history.
The earthquake was of 7.2 magnitude, bringing down several story buildings and burying many people in it. Few moments later, the tsunami came, with wave height between 20 to 40 feet.
The entire city of Messina was shook roughly; out of a 150,000 total population almost 100,000 people had been fully destroyed by the earthquake and tsunami disaster.
Famous Deadly Avalanches
- Famous Avalanches
You are on vacation and find a prefect spot for skiing downhill, you start up perfectly and by the time you're in the middle of your down hill trip suddenly a huge mass of ice in the form of an avalanche.
Types Of Natural Disasters
- The Natural Disasters
Since time unknown the human race has been plagued by disasters that are caused by nature such as storms, floods and earthquakes.
Tsunami of Kamchatka Peninsula, Russia
On November 4, 1952, an earthquake hit the coast of the Kamchatka Peninsula, Russia, leading to a tsunami. It was of magnitude 8.2 on Richter scale with the focal depth of 30 km.
Six cows died and loss ranged from $800,000 to $1,000,000 in Hawaii, and no human loss was recorded. The tsunami caused severe damage to Kamchatka Peninsula, flooding streets and buildings.
In the Hawaiian Islands the boats were destroyed, telephone lines were knocked down and lawns were flooded. Other damage include cement barge thrown and a bridge was destroyed, which connected Coconut Island to the shore.
Tsunami In South Central Chile
On May 22, 1960, the strongest earthquake was recorded in the history near the coast of South Central Chile.
It has the magnitude of 9.5 on the Richter scale, and just after 15 minutes a tsunami came with a height of 30 feet.
It flooded more than 500 miles of the Chilean coast. The earthquake together with tsunami and mudslide damages, caused $550 million recorded loss and around 2,000 people died.
Historic Earthquake Disasters
- Major Earthquake Zones And Disasters
Earthquakes are one of the most hazardous of natural disasters. An earthquake happens due to the tension put on the ground by the tectonic plates when they get jammed or stuck.
Tsunami of Izmit Bay, Turkey
On August 17, 1999 near the Izmit Bay, northwestern Turkey, an earthquake struck of 7.6 magnitudes on Richter scale. It lasted for almost 37 seconds, killing around 40,000 to 45,000 people and approximately half a million people were left homeless.
The city of Izmit was damaged badly. There was an increased in number of deaths the following winter.
The condition was very poor as the survivors were living in unprotected shelters and even on the street. 50,000 houses were to the highest degree damaged, 2,000 other buildings died down and 4,000 other buildings were badly damaged, 600,000 people were homeless.
Tsunami In The Indian Ocean
In December 2004 an earthquake of 9.15 magnitudes on Richter scale hit the Indian Ocean under the sea. Within hours, the coasts of Indonesia, India, Sri Lanka, Thailand, and other countries, were overfloooded with waves, as high as 49 feet.
Over 310,000 people were killed in a dozen countries. This earthquake is now known as one of the most deadly disasters of modern history.
The people dead in this tsunami were more than eight times than in any other tsunami. More than one-third of the people dead were of children.
2004 Tsunami In Indonesia
Earthquake Preparedness And Survival
- Earthquake Preparedness And Safety Measures
Among natural calamities, earthquake is considered to be the most devastating one.
- Earthquake Survival During And After An Earthquake
To survive an earth quake one must first of all know what an earth quake is. An earthquake is the shaking and trembling of the ground.