A magnitude 4.9 earthquake has been recorded offshore in South Australia’s Southern Ocean, with hundreds of felt reports received following the early morning tremor.
According to Geoscience Australia, the earthquake occurred at 6:18am this morning, on Tuesday, October 27th, at a depth of 10 kilometres.
The epicentre was recorded at latitude -36.46 and longitude 138.61, offshore in the Southern Ocean.
Geoscience Australia confirmed the event, which had received 597 felt reports at the time of the supplied earthquake data.
Seismic monitoring stations across South Australia and interstate recorded the earthquake, including stations in Adelaide, Murray Bridge, Kangaroo Island and Mount Gambier.
Other monitoring stations used in confirming the event were located across regional South Australia, including Wallaroo, Sedan, Hallett, Jamestown and Port Pirie, as well as locations in Victoria and Tasmania.
The earthquake was assigned a local magnitude of 4.9, with Geoscience Australia recording 56 time-defining stations and using 68 seismic phases in its analysis.
The event was listed as confirmed in the agency’s records, with the solution updated at 8:14am local time on Tuesday, October 27th.
Geoscience Australia’s felt-report chart tracks reports received during the first 24 hours after an earthquake and is updated every 10 minutes, meaning the number of reports may continue to change as more information comes in.
Felt reports help build a picture of where an earthquake was experienced and how widely shaking was reported. However, the supplied data does not specify the locations of individual reports or indicate whether damage or injuries occurred.
Residents who felt the tremor can submit a report through Geoscience Australia’s earthquake monitoring service, helping contribute to the agency’s record of the event.
The earthquake comes as monitoring stations continue to provide data used to determine the location, depth and magnitude of seismic activity.
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