Meanwhile, panicked residents fled their homes.
An quake measuring 6.6 on the Richter scale hit Bengkulu province in Indonesia on Sunday, local meteorology and geophysics agency said.
As of 5.50am (GMT) there were no reports of casualties or damage following the quake, which struck at a depth of 41 miles.
Several Twitter users reported that they felt the tremors in Singapore.
There are no immediate reports of damage and no tsunami warning. It was even felt in Singapore, nearly 600 km from the epicentre.
Ade Edward, an official at the disaster mitigation agency in the coastal city of Padang, about 385 kilometers (240 miles) from Bengkulu, said the quake panicked residents.
Indonesia, sits on the highly seismically active zone "Pacific Ring of Fire", where many continental plates on the earth's crust keep colliding, Sumatra also experiences frequent earthquakes.
In 2004, an extremely powerful Indian Ocean quake set off a tsunami that killed more than 230,000 people in a dozen countries, majority in Indonesia's Aceh province in northern Sumatra.