Huge earthquake off Indonesia's coast felt in Bali

A 6.6-magnitude earthquake has struck off the coast of Indonesia.

The strong undersea earthquake was recorded 90km north of Batang in Central Java shortly before 9am (AEST), the United States Geological Survey (USGS) confirmed.

Social media users have reported feeling the earthquake in Bali, 700km away.

One Twitter user said he felt “prolonged shaking” at his apartment near Ubud which lasted about two minutes.

Others also reported their villas shook from the quake.

There is no immediate report of structural damage or injuries while there is no tsunami threat, Indonesian officials have confirmed.

Indonesia is prone to earthquakes and volcanic eruptions because of its location along the Pacific "Ring of Fire."

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