A powerful 8.6-magnitude earthquake struck more than 200 miles off the coast of the Indonesian island of Sumatra on Wednesday, spreading panic among residents and reviving memories of the devastating 2004 quake and tsunami in the same area.
The Indonesian government said there were no reports of casualties or significant damage from the initial earthquake, but several strong aftershocks were reported in the afternoon and early evening. The largest measured 8.2, the United States Geological Survey said.
The earthquake was felt in Singapore, Thailand, Bangladesh, Malaysia and India, news agencies reported, with coastal areas of southern Thailand and eastern India declaring tsunami alerts and Indonesia issuing a tsunami warning following the aftershocks.
Commander Bindu Prakash, an officer with the Indian Navy based on the islands, said there had been no noticeable rise in sea levels even past the estimated time that the tsunami was supposed to hit the islands. He said the official tsunami warning was still in effect as a precaution.