Dharahara tower before and after Nepal earthquake
August 5, 2015 By admin 0

Top 10 Earthquakes That Devastated The World

Earthquakes are unpredictable, at least until now we do not have a perfect equipment to forecast such events. We do however have technology to look for earth’s plate movement which helps in predicting earthquakes at some level. US Geological Survey data shows that most powerful earthquakes in the world have occurred in places like Chile, Alaska, Sumatra, Russia, and Ecuador since year 1900. The Richter scale values measures the scale of earthquakes and based on which the top ten list is prepared.

The shaking of the ground creates the destruction. Structures that are not earthquake-proof or built to withstand certain magnitude can crumble. For example in the recent earthquake in Haiti where most buildings were built with concrete block,  earthquakes send waves from deep below towards earth’s surface which destroyed most of those structures. However in San Francisco, most buildings collapsed in the Loma Prieta tremble because of the fact that some them were built on top of the landfill resulting from the disposal of debris from the 1906 earthquake.

U.S. Geological Survey ‘s top 10 deadliest earthquakes since 1900 are :
Location: Izmit, Turkey
Magnitude: 7.8
Date: august 17th,1999
Casualties: The death toll has risen over 15,000 and the injured list up to 40,000 cost of repairs: $10 billion

Location: Mexico City
Magnitude: 8.1
Date: September 20th, 1985
Casualties: 40.000 dead Cost of repairs: $10 bilion Felt by almost TWENTY million people, this destructive earthquake injured nearly 30,000 people and left more than 100,000 people homeless.

Location: Tokyo, Japan
Magnitude: 8.3
Date: September 1st, 1923
Casualties: over 140.000 dead The 1923 earthquake was one of Japan’s worst natural disasters.

Location: Assam & Tibet
Magnitude: 8.6
Date: August 15, 1950
Casualties: 780 people killed in Tibet and 536 people dead in Assam cost of repairs: $10 bilion Buildings suffered extensive cause and landslides occurred in eastern Tibet.

Location: Northern Sumatra
Magnitude: 8.6
Date: March 28, 2005
Casualties: 1000 people killed, 300 injured in Nias; 100 people killed in Simeulue; 200 people killed in Kepulauan, Banyak; 3 people killed, 40 injured.

Location: Rat Islands Alaska
Magnitude: 8.7
Date: February 4, 1965
Casualties: 40.000 dead Cost of repairs: estimated $10.000 Because the areas affected by this earthquake were sparsely populated, there was little cause and no deaths. A 30-foot tsunami affected the nearby islands in the Aleutian chain.

Location: Coast of Chile
Magnitude: 8.8
Date: February 27, 2010
Casualties: 708 dead The epicenter was off the coast of Chile near Concepcion which is south of Santiago. Other areas affected were Maule and Bio Bio.

Location: West Coast Northern Sumatra
Magnitude: 9.1 Date:
December 26, 2004 Casualties: 227,898 dead, missing 1.7milion This earthquake is best known for the giant tsunami that raced across the Indian Ocean.

Location: Anchorage, Alaska
Magnitude: 9.1
Date: march 28th, 1964
Casualties: 131 dead Cost of repairs: $500 million Anchorage suffered the most repairs as well as alternative cities together with Kodiak, Seward and Valdez.

Location: Soutern Chile
Magnitude: 9.5
Date: may 22, 1960
Casualties: 32.290 dead Cost of Repairs: $500 milion Most serious repairs occurred in the Valdivia and Puerto Montt areas A large tsunami widespread opposite the Pacific Ocean.

Source: Sport World