The US Pacific Tsunami Center reported small tsunami in the Cocos island, Australia, after a major earthquake late Monday struck off the west coast of Sumatra, Indonesia, the CNN reported.

The US National Oceanic and Atmospheric Administration has proposed evacuation of people within 1,000 km of the epicenter, said the CNN.

Adam Ereli of the US State Department said there has been no report of significant damages, and that the US government will respond quickly and in a meaningful way.

The US Geological Survey (USGS) in Golden, Colorado revised the strength of the earthquake from measuring a preliminary magnitude of 8.2 to 8.7. Japan's Meteorological Agency put the earthquake at magnitude 8.5.

The quake was reportedly felt as far as Bangkok, Thailand, peninsular Malaysia and Singapore. The Reuters reports said dozens of people were killed and houses damaged on the Indonesian island of Nias, which is close to the epicenter. Thailand, Japan, India and Sri Lanka had issued a tsunami alert.

The USGS said the quake occurred at 11:09 p.m. local time (0409GMT) at a depth of nearly 30 km. The epicenter is reported to be not far from the quake center of the magnitude-9 undersea earthquake on Dec. 26.

The Dec. 26 earthquake, the world's biggest in 40 years, triggered huge tsunami that left more than 174,000 people dead, another 106,000 missing and more than 1.5 million people homeless in 11 countries.