Fairly big and shallow for Australia, USGS has it at 5.6 and I think that has already been downgraded from 5.7/.8
Follows a smaller earthquake near the same area a few days ago which was the first quake we have seen in Australia for a while.
Quote:Magnitude 5.6
Date-Time
Friday, March 23, 2012 at 09:25:16 UTC
Friday, March 23, 2012 at 07:55:16 PM at epicenter
Time of Earthquake in other Time Zones
Location 26.068°S, 132.123°E
Depth 10.7 km (6.6 miles)
Region SOUTH AUSTRALIA
Distances 317 km (196 miles) SSW of Alice Springs, Northern Terr., Australia
370 km (229 miles) WNW of Oodnadatta, South Australia, Australia
415 km (257 miles) NW of Coober Pedy, South Australia, Australia
1926 km (1196 miles) WNW of CANBERRA, A.C.T., Australia
Location Uncertainty horizontal +/- 15.7 km (9.8 miles); depth +/- 6.6 km (4.1 miles)
Parameters NST= 84, Nph= 87, Dmin=321.7 km, Rmss=1.24 sec, Gp= 36°,
M-type=body wave magnitude (Mb), Version=5
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/usc0008nw3.phpNot unusual for that area tho, just rare.
http://www.seismicity.see.uwa.edu.au/welcome/seismicity_in_australia