https://en.wikipedia.org/wiki/List_of_massacres_in_AustraliaI have removed the Knife and arson killings from this list.
The people who say that Port Arthur ended shooting in Australia are wrong.
There has been no massacre as large as Port Arthur since 1996 but there was no massacre that large for seventy years before either.
Port Arthur massacre 28 April 1996 Port Arthur, Tasmania 35 24 A spree shooting by Martin Bryant
Snowtown murders August 1992 – May 1999 Snowtown, South Australia 12
Monash University Shooting 21 October 2002 Melbourne, Victoria 2 A shooting spree by Huan Yun Xiang,
2011 Hectorville siege 29 April 2011 Hectorville, South Australia 3
Hunt family murders 9 September 2014 Lockhart, New South Wales 5 0 Murder-suicide shooting spree
Logan shooting 22 October 2014 Logan, Victoria 3