North Stradbroke Island’s beach section collapse believed to have been caused by slide triggered by erosion
A region of a football-field-sized beach has suddenly broken off because of a ‘flow slide’ at a famous tourist island in Australia. As a result, warnings have been given to avoid the area.
The beach section’s collapse on North Stradbroke Island in the state of Queensland is likely the result of a slide, caused by erosion because of strong tides. As a result of the event, about 330 feet long and 330 feet wide hole has been left over there.
While speaking to ABC News, Michael Bates, a local lifeguard said, “It is going to make it a very massive hazard. It is not a safe area for swimming area at all, due to it being so unstable, unpredictable and varying depth and the strong water movement”. Generally, the beach is packed with fishermen, but it was empty at the time of the collapse.
A University of Queensland researcher, Konrad Beinssen, said the hole has been caused due to a flow slide, wherein a densely-packed, sloping stretch of sand starts eroding and then collapses.
He told Fairfax Media that in case an individual gets fine tightly packed sand on a submarine slope that is at a risk of collapse, all that it needs is a trigger and alike a bushfire, it will grow and keep on growing.
He added that they are quite common, but are not often seen as they generally occur underwater and peter out before reaching the bank. They don’t occur for very long time spans and starting underwater, they are unpredictable.
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