We've just received reports of an earthquake! Some details are provided in the quotation below from the Port Macquarie News. The mention of Armidale is probably connected with the fact that the nearest tracking station to the site was Armidale and possibly located in the building where I work, which also houses geology!
I haven't met anyone who has felt the ground shudder and the reason is simple. Read the end of the article and you'll see that the quake was very minor. For the record, the Richter Scale is an exponential one. So a 2.5 quake is not about one-third as strong as say the 7.1 quake that hit Fukushima a few years ago and did monumental damage. In fact, it's closer to only 1 / 100,000 times the strength!
Other information I have suggests that it was also technically deep-seated - at about 10 km and deeper ones appear to do much less damage. So, breathe a sigh of relief and get on with normal life.
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I haven't met anyone who has felt the ground shudder and the reason is simple. Read the end of the article and you'll see that the quake was very minor. For the record, the Richter Scale is an exponential one. So a 2.5 quake is not about one-third as strong as say the 7.1 quake that hit Fukushima a few years ago and did monumental damage. In fact, it's closer to only 1 / 100,000 times the strength!
Other information I have suggests that it was also technically deep-seated - at about 10 km and deeper ones appear to do much less damage. So, breathe a sigh of relief and get on with normal life.
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"After a weekend of earthquake tremors, residents at South West Rocks, Stuarts Point, Dorrigo and Armidale continue to experience the shakes.
Three more tremors were recorded on January 23: one at 5:55am, 6:14am and 7:36am according to the tracking station at Armidale.
South West Rocks’ resident Corrinne Boon said the continuous tremors were concerning.
“We had a really big one at about 9pm. This is so scary. Don't know what to do. Nothing but wait I guess,” she said.
Although data from the nearest tracking station at Armidale shows the tremors are originating to the south of Dorrigo, seismologist Spiro Spiliopoulos from Geoscience Australia said the earthquakes have been difficult to precisely locate because of their small magnitude.
“We’re still working on the location,” he said.
“These earthquakes measured a magnitude 2.5 on the Richter Scale, so they must have originated very close to where the people were feeling them.”"
AS
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