A 4.2 magnitude earthquake hit South Australia at 3:25 pm (ACST). It struck near Burra, north of Adelaide, at a depth of 3km.

For more info, please read the original article by 9News:
https://www.9news.com.au/national/earthquake-burra-south-australia-42-richter-scale/52d7bee5-6c79-4948-8f4d-433c0cceeaec