Terrifying Footage Emerges Of Moment Tsunami Hits Live Gig

WARNING: Graphic Video.

A tsunami thought to be triggered by an underwater landslide from volcanic eruptions has hit beaches in Indonesia, killing dozens and injuring hundreds more.

Indonesia news websites described people running in fear from 5 metre waves after the tsunami hit on Saturday night.

The group's lead vocalist, Riefian "Ifan" Fajarsyah, has been the only survivor found so far.

He posted a video to Instagram looking shell shocked and asking for prayers, saying his wife, actress Dylan Sahara, was still missing.

He told an Indonesian TV station he was dragged into the sea and there were 20 to 24 bodies around him.

The band was performing at an end-of-year event for the state utility company PLN, company spokesman I Made Suprateka told Reuters.

Comedian Ade Dora, who was presenting at the event, posted a picture of a body on a stretcher, covered with a sheet.

"Goodbye my wife, good mother and wife," he wrote.

Still image from a video posted by Ade Dora on his Instagram account.

Undersea landslides triggered by an eruption of the Mount Anak Krakatau volcano could be the cause of the tsunami, the country's climatology agency BMKG said.

The volcano is located on the Sunda Strait between the island of Java and Sumatra.

The climatology agency said the eruption took place at 9.03 pm, and the tsunami hit at 9.27 pm.

READ MORE: Tsunami Hits Indonesia, Death Toll At 43

Beaches in South Lampung, Sumatra, and Pandeglang, Java, were also swamped.

Indonesian disaster agency spokesman Sutopo Purwo Nugroho said 430 houses, nine hotels, 10 vessels and dozens of cars were reported to have been damaged at Banten's Carita beach on Java.

The death toll was likely to grow.

The Australian Embassy in Jakarta said it was making urgent enquiries to determine whether any Australians had been affected.

Norwegian volcano photographer Oystein Andersen was on the beach taking photos of the volcano after the earlier eruptions when the waves came.

"I had to run, as the wave passed the beach and landed 15-20m inland," Andersen wrote on Facebook.

"Next wave entered the hotel area where i was staying and downed cars on the road behind it. Managed to evacuate with my family to higher ground trough forest paths and villages, where we are taken care of (by) the locals. Were unharmed, thankfully."

Videos posted on social media showed flooded streets, an overturned car and people running up stairs to escape the waves.

Anak Krakatau, or Child of Krakatoa, emerged in 1927 from the caldera of the 1883 eruption of Krakatoa. It has been erupting since June.

That 1883 eruption was one of the deadliest in the world, killing more than 36,000 people and creating a column of ash 500 metres high.

In 2004, an estimated 230,000 people were killed on Christas Eve when a tsunami struck 13 countries on the Indian Ocean including Indonesia, Sri Lanka, India and Thailand.

Featured Image: Instagram (ifanseventeen)