Seismologist recorded the massive murmur at 10km deep
Residents report the shaking lasted up to 40 seconds
THE biggest earthquake for more than a century has hit Victoria tonight with millions feeling it when it struck just before 9pm (AEST) for around 30 to 40 seconds.
Reports started coming in from residents in suburban Melbourne, and then spread to the northeast and southeast of the state.
Windows were rattled, floors rocked and roofs shaken as the quake struck around 8.55pm.
The Geoscience Australia website was in meltdown as people flocked online to find out what occurred and Twitter went wild and when Geoscience was able to restore its site it had the news that the quake that rocked Victoria was the biggest in the state for 109 years.
The US geological survey reported the earthquake was almost 10km deep with an epicentre between Trafalgar and Moe in the southeast.
The SES says it's had more than 30 calls for help.
The USGS reported the earthquake hit 120km out of Melbourne, some 10km southwest of Moe. The USGS registered it as a 5.2-magnitude quake, but Geoscience Australia clocked it at 5.3, revising it down from an initial 5.5 reading.
Readers have swamped the Herald Sun with calls reporting significant tremors from everyone from the suburbs all the way across the state to country Victoria.