Residents of Melbourne's south-eastern suburbs are reporting that an earth tremor hit the area this afternoon.

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Age reader Matthew Muir said the tremor hit Berwick about 6.21pm as "a rumble".

"[It] lasted around 15 seconds, and finish[ed] with a slightly louder, and felt, jolt," he said.

Readers from Narre Warren and Frankston also reported feeling the tremor.

"We heard large rumblings and felt [the] ground vibrate. It all ended with a loud bang," Rowena Esslinger from Narre Warren said.

Dozens of people took to online networking site Twitter to report the "earthquake", with Pakenham, Cockatoo and the Mornington Peninsula among the areas where it was reportedly felt.

Confirmation of the apparent tremor has been sought from Geoscience Australia.

More to come.