The mountain in eastern New South Wales has been erupting for days.
The last time was on Sunday, with a total of 1,500 cubic metres of sulphur dioxide and more than 50 cubic metres gas.
In New South Welsh history, Mount Bexby is one of the oldest volcanoes in the world.
The volcano is a feature of the state’s Great Smoky Mountains National Park.
The eruption has been linked to an oil spill in nearby Carmarthenshire.
The oil spilled into Lake Alice and the nearby Woomera river.
Mount Bexbys eruption has already been linked with a gas leak in Carmarthed in the 1960s and 1970s.
The area around the peak is now home to more than 400 people.
There has been a spike in people trying to get to the peak to see the eruption, including a man who climbed it from his home in South Australia.
Carmarthen police have released a video which shows an Australian tourist attempting to climb Mount Baxby.
He is taken away by police officers before he can climb.
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