Earthquake recorded off the North West coast
An earthquake of 3.5 magnitude on the Richter scale was recorded in waters off the North West coast, near Barrow Island, last week.
Geoscience Australia reported the quake occurred at 10.02am on Monday, October 24, about 300km off the mainland coastline and at a depth of 20km.
Duty seismologist Dr Marco Maldoni said the quake’s radius of impact was about 40km and being so far away from land, there was “no way in the world” land tremors would have been felt.
As a deeper quake, there was also no tsunami risk.
“That’s about as deep as Australian earthquakes get — they’re usually quite shallow,” Dr Maldoni said.
He said Geoscience Australia recorded earthquakes offshore from North West WA “from time to time”, though they were usually not disruptive, being so far out to sea.
There have been several earthquakes off the North West coast in recent years, mostly around a magnitude of 4.