August 9, 2022

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Melbourne rocked by Victoria’s greatest earthquake on report


Damaged constructing in Melbourne, Australia on 22 September after a 5.9 magnitude earthquake

WILLIAM WEST/AFP by way of Getty Images

The state of Victoria, Australia, was shaken by its greatest onshore earthquake in recorded historical past on 22 September. Some buildings have been broken however nobody was severely harm.

The magnitude 5.9 earthquake struck at 9:15am native time, in accordance with Geoscience Australia. The epicentre was within the Alpine National Park about 120 kilometres east of Melbourne, at a shallow depth of round 10 kilometres.

People in Melbourne, who’re presently in a covid-19 lockdown, reported feeling the bottom shake for 15 to twenty seconds. Tremors have been additionally felt in Canberra, simply over 300 kilometres north-east of the epicentre.

A small variety of buildings in Melbourne partially collapsed and energy outages occurred in some elements of the town, however no main injury or critical accidents have been reported.

This is due to the epicentre occurring in a comparatively distant area, says Dee Ninis on the Seismology Research Centre in Melbourne. “We’re really lucky it wasn’t in a populated area,” she says

Australia experiences comparatively few earthquakes as a result of it sits in the midst of a tectonic plate, says Meghan Miller on the Australian National University in Canberra. “Countries like New Zealand, Indonesia and Japan are more at risk because they sit on plate boundaries,” she says. “But it is a common fallacy that earthquakes don’t happen in Australia.”

One of Australia’s worst earthquakes was a magnitude 5.6 earthquake in Newcastle in New South Wales in 1989, which brought about in depth injury and killed 13 folks.

Earthquakes happen in Australia when the tectonic plate that it sits on rubs towards others and stress is slowly transmitted by means of the plate, ultimately resulting in a stress build-up that causes a fault throughout the plate to rupture, says Phil Cummins, additionally on the Australian National University.

A magnitude 5.7 earthquake occurred in the same area of Victoria in 1966, suggesting it might be an space that’s susceptible to rupturing when stress progressively builds up, says Cummins.

A magnitude 4.1 aftershock was recorded quarter-hour after this morning’s earthquake, however Cummins expects there shall be no extra huge aftershocks. Australia’s Bureau of Meteorology has additionally deemed that there is no such thing as a tsunami threat.

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