Power has been restored to about 6,000 Ergon Energy customers whose supply was interrupted as a result of an earthquake which struck near Eidsvold (QLD).
Protection equipment at four substations detected movement of the transformers and cut supply as a safety precaution.
This occurred at the Eidsvold, Wallaville and Givelda substations when the earthquake struck at 1.57am, while the Monto substation was impacted about 10 minutes later, most likely from an after-shock.
Crews were dispatched to the substations to carry out a number of checks to confirm there was no damage and that power could be safely restored.
Further tests will be performed on one of the transformers at the Monto substation today, while customers are being supplied from the other transformer.
Power was restored to about 1,750 customers in the Monto and Mulgildie areas supplied from Monto substation, about 575 in the Eidsvold area supplied from that town’s substation and about 250 customers in the Pine Creek and South Bingera areas supplied from Givelda substation between 3.35am and 3.45am.
Power was reinstated to about 3,500 customers in the Gin Gin and Mt Perry regions shortly before 5am after crews had checked the Wallaville substation and also the Bullyard and Monduran substations which are fed by the same sub-transmission line and whose customers were also affected.