He had breached Level 1 of the International cricket Council's code of conduct, which relates to showing dissent at an umpires decision.
It has been anticipated Hazlewood would face a stiffer punishment, however it is believed his early guilty plea, plus a previously good record, worked in his favour.
The charge, levelled by umpires Richard Kettleborough and Martinesz plus the third and fourth officials, carries a minimum of an official reprimand and a maximum of 50 percent of a player's fee.
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Hazlewood and captain Steve Smith led vociferous appeals and Smith may have been lucky to avoid a charge.
Smith doesn't wear his emotions so much on his sleeve as front and centre on his chest. There's no doubting how wound up he can get. He might be getting a quiet call from CA as well to remind him to keep his players behaviour up to the mark.
Australia have form for overstepping acceptable boundaries.
Here's five examples of Australian cricketers going too far....
1: The underarm incident, Melbourne, 1981
Trevor Chappell's delivery, on brother Greg's instructions to deliver cricket's most notorious ball against New Zealand in a one-day final stands head and shoulders top of the list. New Zealand batsman Brian McKechnie had to hit the final ball of the match for six to tie the game. Chappell G was taking no chances. The ground was in uproar. Wicketkeeper Rod Marsh called ''don't do it mate" to his mate, but to no avail. McKechnie, having patted the ball down, dramatically threw his bat metres away. New Zealand Prime Minister waded in, describing Australia's yellow strips as appropriate clothing.
2: The World Cup final, Melbourne 2015
Australian wicketkeeper Brad Haddin, not one to work silently through a match, saw red when he thought New Zealand were too polite during their pool game at Eden Park earlier in the tournament. He vowed to go verbally hard in the decider. The result was ugly abuse directed New Zealand batsmens' way in their innings. Haddin wasn't the Lone Ranger but he was abuser in chief. It left a sour taste on Australia's win.
3: David Warner and Rohit Sharma, Melbourne, 2015
Australian batsman David Warner was caught allegedly mouthing ''speak English" to Indian batsman Rohit Sharma during a heated exchange during an ODI last summer. Warner copped a 50 percent fine of his match fee but was unrepentant: ''I won't back down. We play hard, aggressive cricket but we know what comes with it. We're all about playing cricket the right way." Former New Zealand captain Martin Crowe was unimpressed: ''He is the most juvenile cricketer I have seen on a cricket field. The more he gets away with it, the more others will follow his pitiful actions."
4: Charming armbreaker, Michael Clarke, Brisbane, 2013
Australia's captain copped a fine of 20 percent of his match fee for this line to England new ball bowler Jimmy Anderson. To be fair, Anderson has serious form as a hardcore sledger and had allegedly threatened to punch Australian George Bailey. Clarke's response: ''Get ready for a broken f...... arm".
5: Glenn McGrath and Ramnaresh Sarwan, Barbados, 2003
Australian fast bowling great McGrath turned nasty when he made a comment to the West Indian batsman which drew a retort about McGrath's late wife. It was immediately recognised as an unintended insult but McGrath went for the batsman with finger jabbing vitriol. The photos did McGrath no favour but incredibly match referee Mike Proctor handed out no punishments. Cricket Australia chief executive James Sutherland was moved to remind the Australian team about the importance of the spirit of cricket.