Some 10,000 people have been evacuated on the Indonesian island of Lombok after a powerful 6.9 magnitude quake left more than 90 people dead, reported BBC.

The tremor struck at 19:46 local time (11:46 GMT) on Sunday at a fairly shallow depth of 31km, it stated.

Witnesses spoke of chaos and terror as buildings collapsed and power and communication lines were cut, said the report.

Boats have been sent to evacuate more than 1,000 tourists from the nearby Gili islands. Aid agencies said the priority was to provide shelter for residents too scared to return to their homes, added the report.

According to senior authorities, the impact was far bigger than another quake that hit Lombok region last week, killing 16 people.

Lombok is a roughly 4,500 sq km island east of the slightly larger island of Bali. The two islands are home to about three and four million people respectively. Both are popular with tourists who visit beaches and hiking trails, the BBC reported.

The earthquake was of magnitude 6.9, according to the US Geological Survey. There have been more than 130 aftershocks since the quake hit, it added.