THE Upper Hunter was rocked by four earthquakes in 24 hours that were felt as far away as Sydney.
On Monday, December 16, a 3.8 magnitude earthquake struck at Muswellbrook at 3.27pm.
Geoscience Australia estimated the quake occurred at a depth of two kilometers and was located between Edderton and Muswellbrook.
The second, which had a magnitude of 4.4, occurred nearby at Denman at 4.29pm.
A third tremor registering a magnitude of 2.9 was recorded in the same area about 6.11pm.
The Geoscience Australia website was inundated by reports of the quakes.
Then on Tuesday morning, December 17, residents woke to news that a fourth earthquake had hit near Muswellbrook at a magnitude of 3.0.
Geoscience Australia seismologist Hadi Ghasemi said it was likely more earthquakes would occur in the area in coming days.
"There are a number of weak faults in that area that are contributing to these mini-quakes," he explained.
"It's hard to link it to a particular fault."
Geoscience Australia is always interested in hearing from anyone who feels a tremor.
To fill out a report, visit the website
