WATCH: Lava 'firehose' crashes into Pacific Ocean

Scientists believe the cliff above the outpouring could be set to collapse in the coming days - causing even larger explosions in the water

WATCH: Lava 'firehose' crashes into Pacific Ocean

A wide view of the Kilauea volcano ocean entry, at sunset. Image: USGS

Researchers have captured dramatic footage of a large stream of lava pouring into the ocean from a crack in a Hawaiian volcano.

The flow reportedly began as a trickle on New Year’s Eve after a 26-acre lava delta collapsed into the Pacific.

The intensity of the of the ‘firehose’ has increased steadily since then with the lava now falling 70 feet into the cool water causing explosions and clouds of smoke and steam.

The Kilauea volcano has been erupting consistently since 1983 with a smoking black stream of lava moving across the southeast side of the Hawaiian Big Island since June 2014.

Scientists monitoring the firehose have voiced concerns that a large “hot crack” in the cliff above the flow has widened significantly over the past four days.

Kilauea's ocean entry, 29-01-2017. Image: USGS

According the US Geological Survey (USGS) “grinding noises” could be heard coming from the crack on Wednesday Feb 1st and the block of cliff on the ocean side of the crack “could be seen to move slightly."

The signs indicate that the section of sea cliff is highly unstable and could collapse at any time - dropping large amounts of hot rock into the water and causing ever-more explosive interactions.

USGS scientists have said there is no indication of the outflow slowing down or stopping.