Here some reports:
“Yep. Definitely heard it. Woke first at 2am, 2nd not long after. Was a strange rumbling noise with shaking windows. Cat went crazy. Never heard anything like it before. Freaked me out!!!”
“Woken up by the windows rattling, and then a low frequency rumble-not much noise. (Colonel Light Gardens). Different to usual thunder.”
What were these strange shaking and loud noises that woke up residents of Adelaide, South Australia between 2am and 2.30am on Saturday, September 2, 2017?
At least 800 people reported the event to Geoscience Australia. Witnesses felt at least two minor shakes and heard rumbles that woke them up.