Fleurieu residents felt and heard an earthquake just before 9am on Friday, July 27.
According to Geoscience Australia, a 2.6 magnitude earthquake was felt offshore of Aldinga at 8.51am.
Chris Fenech felt the earthquake’s effects at Myponga.
“I heard a loud rumble and felt the ground vibrate and windows in the house rattled,” he said.
Others around Myponga, Myponga Beach, Sellicks, Whites Valley, Wattle Flat and Mount Compass reported their houses shaking or a rumbling sound.
Senior duty seismologist Hugh Glanville said these types of earthquakes were “relatively common” for the Fleurieu Peninsula.
“It’s a more active tectonic region of Australia,” he said.
“In the last 10 years, within 100 kilometres there’s been 37 earthquakes we’ve located, and obviously there’s even more smaller earthquakes.”
He said people in the area may have seen or felt shaking or heard rattles or bangs.
“It’s under the size we’d expect damage; usually it’s about a 4 magnitude earthquake when we get damage and even then it’s minor,” he said.
It is two months since the last earthquake felt in the region, where the epicentre was Mount Compass.
That was a 3.0-magnitude earthquake which rattled the Fleurieu at 12.13pm on Monday, May 28 and was felt as far away as Blackwood and the Adelaide Hills – up to 30 to 40 kilometres from the epicentre.