Earthquake

Earthquake is most dangerous to the human and heavy property loss. This effect is only with in few minutes.

Staggering facts

Facts about earth quakes

  • Earth quakes are measured with a device called a seismograph.
  • The richer scale measures the magnitude of an earthquake on a scale of 1 to 10 using. A seismograph.
  • The Richter scale was devised in the 1930s by an American geophysicist called Charles Richter (1900- 1985).
  • Many of the world’s major cities such as Los Angles, Mexico City and Tokyo are located in earthquake zones.
  • When freeway collapsed in the 1989 San Francisco quake, some cars were crushed to just 0.5 m thick.
  • In 1923 more than 200,000 people died in the firestorm that engulfed Tokyo, as an earthquake upset domestic charcoal stoves.
  • In the Kobe earthquake of 1995 and the San Francisco earthquake of 1989, some of the worst damage was to buildings built on landfill- loose material piled in to build up the land.
  • The earthquake that killed the most people was probably the one that hit Shansi in China in 1556. It may have claimed 830,000 lives!
  • The most fatal earthquake of this country was the one that destroyed the city of Tang Shan in China in 1976. It killed an estimated 255,000 people.
  • The worst earthquake to hit Europe was centered on Lisbon, Portugal, in 1755. It destroyed the city, killing 100.000 or more people. It probably measured 9.0 on the Richter scale.

 

Earthquake Fact file

*The longest recorded earthquake was in Alaska on March 21, 1964. But it too lasted just 4 minutes!

 

Main Points Ocean

* The world’s windiest place is George V in Antarctic, where 320 kilometers per hour winds are usual.

*The Pacific Ocean has more seamounts (mountains underwater) than any other ocean.

 

 

 

 


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