Murray and Konta make it a Brit double
The world number two appeared to be in full control in the first set but after losing his first set of the tournament the Scot romped to a 6-2 3-6 6-2 6-2 victory against the number 32 seed.
Next up is Australia’s Bernard Tomic, seeded 16th.
Murray was unaware that his father in law Nigel Sears, 58, collapsed in the Rod Laver Arena but after the match he skipped the press conference to be with him in hospital where he was described as “conscious, talking and sitting up.”
Murray’s wife Kim is at home in Britain awaiting the birth of their first child.
Earlier, the Johanna Konta reached her second successive Grand Slam fourth round after beating over Czech Denisa Allertova.
The 24-year-old’s 6-2 6-2 victory meant she became the first British woman to make the fourth round of the Australian Open since Jo Durie and Anne Hobbs in 1987. She also matched her last 16 achievement at last year’s US Open.
Konta will play 21st seed Ekaterina Makarova of Russia.