AUSTRALIANS holidaying in Bali have been woken by another terrifying earthquake this morning.

The magnitude 6.0 earthquake hit about 4am Bali time, according to the US Geological Survey.

It was followed by a second magnitude 7.0 quake near Papua New Guinea, prompting the Australian Bureau of Meteorology to issue a message there was no tsunami threat to Australia.

The quake near Bali caused brief panic among residents, although there was no tsunami alert issued.

The head of Indonesia’s geophysics agency said there had been no reports of casualties or damage, although information was still being gathered in East Java province.

“The quake didn’t trigger any tsunami for sure,” Dwikorita Karnawati told AFP.

Some guests at a hotel in Nusa Dua, south of Bali’s main international airport, briefly fled outside after the strong tremor shook the building.

A woman named Davey, who took refuge in the parking lot of a Bali hotel, said: “Wow, that was really strong and it lasted a long time.”

Another resident, Ni Komang Sudiani, told AFP: “The quake was very big. I immediately woke up and took my little kids out of the house. All my neighbours were also running.” Tonny Akbar Mahendro said: “I felt it for about 10 seconds. People were sleeping but got woken up by it.”

The earthquake, which began in the Bali Sea, shook buildings for several seconds.

The quake was also felt in Surabaya, the capital of East Java province, which is about 200km from Situbondo, the nearest town to the quake epicentre.

Some residents briefly left their homes in the island’s capital Denpasar, according to Reuters.

The annual meetings of the International Monetary Fund and World Bank are being held this week in Bali, which is attended by more than 19,000 delegates and other guests, including ministers and some leaders.

The USGS put the epicentre as 40km northeast of Sumberanyar on nearby Java island.

The tremor comes after a 7.5-magnitude and subsequent tsunami struck off the Indonesian island of Sulawesi — around 1000km northeast of Situbondo — last month, killing more than 2000 people.

A string of earthquakes in Lombok that started in early August killed more than 550 people.

Indonesia, one of the most disaster-prone nations on earth, straddles the so-called Pacific “Ring of Fire”, where tectonic plates collide and many of the world’s volcanic eruptions and earthquakes occur.

The PNG quake happened 41km from Pomio.

More to come