The effect of the quake was noticed in the countries - Singapore, Thailand and India. In India, the apartments in Mumbai, Kolkata and Chennai shook for few seconds. The Tsunami centre also warned saying "this massive quake have the potential to generate a widespread destructive tsunami that can affect coastlines across the entire Indian Ocean basin".
The U.S Geological Survey said the quake was centered 20 miles (33 kilometers) beneath the Indian Ocean floor. A powerful earthquake of 9.1 magnitude triggered a tsunami in the Indian Ocean on Decmber 26, 2004. Around 230,000 people were killed in this natural disaster.
