Strong earthquake strikes off Indonesia coast

A 6.0-magnitude earthquake has hit off the coast of Indonesia, according to the US Geological Survey, sending people fleeing their homes but with no casualties or damage immediately reported.

The shallow quake occurred late Tuesday in the waters off the southwestern coast of Sumatra island — nearest to Bengkulu, South Sumatra and Lampung provinces.

It sent people in South Sumatra and Bengkulu rushing from their homes, according to local media and witnesses.

However no casualties or damages were immediately reported by authorities, and USGS estimated that there would be little chance of damage on the ground in Sumatra island. 

No tsunami threat was issued.

But the Indonesian Meteorology and Geophysics Agency (BKMG) advised residents to "watch out for possible aftershocks".

It classified it as a 6.5-magnitude quake, and said its epicentre was in the sea about 64 kilometres from shore.

READ MORE: Quake strikes off Indonesia's Java island, no tsunami warning issued

Pacific "Ring of Fire"

Indonesia sits on the Pacific "Ring of Fire", causing it to experience frequent earthquakes.

The last major quake that hit the country was in March, when a 6.7-magnitude quake hit off Sumatra island's west coast.

Residents of North Sumatra's Nias and Hibala islands reported being shaken awake by the tremors. It was followed by a series of strong aftershocks.

The month before, a 6.2-magnitude quake hit Sumatra's northern region, killing at least eight people and injuring dozens.

That February quake had a depth of 12 kilometres, heaving damage upon homes and buildings, including mosques, schools and banks, and pushing authorities to evacuate more than 6,000 people.

In 2004, a 9.1-magnitude quake struck the coast of Sumatra and triggered a tsunami that killed 220,000 people throughout the region, including about 170,000 in Indonesia.

READ MORE: Deadly earthquake rocks Indonesia's Sumatra island