The Earthquake and the Tsunami on the Indian Ocean

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The earthquake and the tsunami on the Indian Ocean (2004)

On 26th of December 2004, the most horrible nightmare came true for the people living in the countries located on the Indian Ocean; Indonesia, Malaysia, Thailand, India, Sri Lanka and the Maldives. It’s one of those episodes that still are remembered today and are in the back of people’s minds. It was series of underground-earthquakes that were triggered, and the first and the most powerful earthquake at magnitude 9,3 on the Richter’s scale.

It began 7:58 AM (Indonesia’s time). The earthquake was starting, and Jakarta’s geophysics institute registered it at magnitude 6.5 at the Richter’s scale. The United States Geological Survey reported the magnitude was at 8.1, but after analyses it was then increased to 8.5, afterwards 8.9, and at the end 9.0. After 16 minutes, a warning was published by Hawaii.

The biggest disaster struck after 30 minutes, though, when strong waves (that were up to 10 meters high) began hitting the west coast of Sumatra. Only 1 to 2 hours later, the waves came to Thailand, south Myanmar and parts of Malaysia. In Sri Lanka, the waves came 1 to 2 hours after the earthquake. The waves that hit Maldives 4 hours later were not as strong, though… they were still stronger than the waves that hit Kenya, Somalia and Tanzania 6 to 7 hours thereafter.

Like I mentioned, the earthquake was first measured at 6.5 at the Richter’s scale, but at the end (after analyses), it was measured at 9.3. The hypocenter was at 3.316°N, 95.855°Ø, about 16 kilometers west for Sumatra and north for the island Simeulue, about 30 kilometer under sea level. This is in the utmost western end of the earthquake-belt called “Pacific Ring of fire” that accounts for 81% of the world’s stronger earthquakes.

The earthquake on the Indian Ocean got an abnormally geographical size from the starting point in south…...

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