NEW VIDEO: Expert says to expect more earthquake aftershocks
UPDATE 4PM: THE SEQ coast can expect more tremors today as a spate of aftershocks follow Thursday's magnitude 5.3 quake that occurred 80 km off the coast of Fraser Island, a Queensland seismologist has confirmed.
Seismologist Mike Turnbull, of the Central Queensland Seismology Research Group, certified that this afternoon's magnitude 5.7 earthquake that was felt across the region at 1.38pm today is an aftershock.
He said it is not uncommon for aftershocks to be felt as strongly as the original tremor.
"There have been a spate of aftershocks in the last hour," Mr Turnbull told the Gympie Times at 3.30pm today as he collated data from the quake.
"It's the plate tectonics releasing energy," he explained.
Mr Turnbull said they can feel stronger because the energy of earthquakes radiates in funny ways, depending on how the quake was caused.
"It's happening 10 km under the ground and if you get the rock breaking in a certain direction it will throw energy in that direction.
"So the maximum energy will be radiated in different directions at different times for different earth quakes."
He said no two earthquakes are exactly the same, and although he expects the aftershocks to continue today they will ease off.
The seismologist also verified that this particular earthquake and its aftershocks will not cause damage on shore, although he said it may cause minor masonry cracking.
|Magnitude||Sydney time||Depth (km)||Approximate location|
|3.1||01 August 2015 @ 15:08:33||10||Offshore E of Fraser Island, QLD.|
|5.1||01 August 2015 @ 14:46:22||0||Offshore Eastern Queensland, Coral Sea.|
|5.7||01 August 2015 @ 13:38:43||0||Offshore Eastern Queensland, Coral Sea.|
|2.8||01 August 2015 @ 11:18:19||30||Offshore E of Fraser Island, QLD.|
UPDATE 2.59PM: Geoscience Australia has confirmed a 5.1 magnitude aftershock has hit at 2:48PM after the original 5.7 earthquake in the Coral Sea this afternoon.
Preliminary information puts the aftershock's depth at 0km.
Mag 5.1, Offshore Eastern Queensland. 1 August 2015, 14:46 (AEST). Lat, Long: 25.39S, 154.23E. Depth 0km. Info is preliminary. #eqaus— EarthquakesGA (@EarthquakesGA) August 1, 2015
EARLIER: FOLLOWING reports of tremors felt along the Queensland coast, it has been confirmed a second earthquake occurred just before 2pm.
The 5.6-7 magnitude quake occurred 132km East-North-East off Rainbow Beach.
Mag 5.7, Offshore Eastern Queensland. 1 August 2015, 13:38 (AEST). Lat, Long: 25.38S, 154.29E. Depth 10km. Info is preliminary. #eqaus— EarthquakesGA (@EarthquakesGA) August 1, 2015
Sunshine Coast and Gympie residents reported feeling a tremor similar to the earthquake tremor experienced on Thursday.
Queenslanders have reported feeling the tremor as far north as Bundaberg and as far south as Redcliffe.
Offshore Eastern Queensland, Coral Sea.
Magnitude: 5.7 (Mb)
Depth: 0 km
Date and Time
AEST: 01 August 2015 @ 13:38:43
It is estimated that this earthquake:
- Could have been felt by people up to 340km away
- Could have caused damage up to 27km away
Thursday's quake was a 5.3 magnitude quake in the Coral Sea that was felt from Bundaberg down to the Gold Coast and inland to Toowoomba.
Buildings shuddered, crockery rattled and small cracks reportedly appeared in buildings as the earth shook.
Some homeowners reported seeing small waves on the surface of their backyard swimming pools.
The quake's epicentre was about 150km east of Fraser Island and 30km below ground.