Sam Billings (29) and stand-in captain Jos Buttler (46) looked to steady the ship for England but lacked the firepower to get hold of Australia's disciplined bowlers.
It was a second drubbing for England after going down by five wickets to Australia in Hobart on Wednesday.
When Glenn Maxwell drove Liam Dawson for a single in the eighth over of the chase, he overtook Cameron White to become the fourth highest run-getter for Australia in T20 internationals.
Travis Head makes way for a fully fit Aaron Finch.
Though he has led the team expertly and energetically in the field, Warner has found himself mired in a rut with the bat, and Willey's early away swing proved too much for his minimal footwork, resulting in a thin edge behind in the very first over of the chase. There were no nerves for dynamic No.3 Chris Lynn, who skipped down the pitch second ball to whack a Willey delivery to the boundary. Chris Jordan took highest 2 wickets for England.
England next face New Zealand in consecutive matches in Wellington (February 13) and Hamilton (February 18) as they attempt to join Australia in the final.
Morgan strained his right groin during training and has been replaced for Saturday night's match by James Vince. Mark Wood was dropped.
Once again, Roy and Hales started the innings for England.
These early blows caused England to pull back on their customary aggression, but the fall of regular wickets meant this policy did not work particularly well either. Billings and Buttler combined for an important 43-run partnership to ensure England posted a competitive total but Australia's tight bowling at the death ensured they kept the batsmen on a tight leash. Australia reached 50 in just the sixth over before Lynn (31 from 19 balls) fell to give England a glimmer of hope. The excellent Richardson was to claim his third wicket when Buttler tried to clear the fence from the final ball of the innings, but could not quite reach the sight screen, where Agar, who had also been economical with the ball, made a running chance look far less hard than it was.
Kuldeep Yadav, Yuzvendra Chahal make history in India's 124-run win
It leaves India the job of winning only one of the remaining three matches to clinch their first ODI series in the rainbow nation. Elaborating on just what is working for Chahal and Yadav here, Kohli said the conditions have been almost flawless for the duo.