Researchers have moved the 6.3-magnitude earthquake's recorded epicentre 250 kilometres, based on historical journal entries and seismology reports they say were 'misinterpreted' at the time.
Re-evaluating data and reports of historical earthquakes has led researchers to move the recorded epicentre Queensland's largest earthquake 250km onshore.One researcher warns Australia has the potential for more large earthquakes on land and says accurate historical data will help build a picture of an area's seismic hazard.
Stacey Martin, a PhD student at the Australian National University in Canberra, has been researching historical earthquakes."In Australia, we only have good instrumentation from about the 1960s, so prior to that, we don't really know much about where these earthquakes might have been centred and how big they were," Mr Martin said.
The personal papers of Francis Bell, the then-owner of Camboon Station, described not being able to stand up during the earthquake."This is quite unusual for an earthquake that's very strongly felt at an inland location, with aftershocks, where the actually instrumented epicentre is offshore.
"That was really a big 'a-ha' moment, because that distance not only coincided with the distance to Camboon, but it also coincided with the region that experienced a lot of aftershocks, which now coincided with where the epicentre really should be."Coominglah is only 185km north west of Gayndah, the site of Queensland's second largest earthquake in 1935, which measured a magnitude of 6.1.
Mr Turnbull said having accurate data on earthquakes, including historical ones, was especially important as Australia's population grew.
Bundaberg Coominglah Camboon Eidsvold Gayndah Earthquake Aftershocks Gladstone Earthquake Lady Elliot Island 1918 Earthquake Bundaberg Earthquake Seismologists Seismogram
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