One of the Dreamworld workers operating the Thunder River Rapids Ride on the day of the fatal incident in 2016 will continue giving evidence today.
Senior operator Peter Nemeth started recalling his memory of the tragedy during the inquest on Tuesday, and claims he hit the emergency stop button multiple times.
On Day Two he told the court he pressed the button two or three times after the first raft became stuck, before the second raft containing six people hit it and flipped, claiming the lives of four people.
The button he pushed had a stop time of eight seconds, while another button over near a junior ride operator only took two seconds.
Mr Nemeth told the coroner he wasn't aware they were different.