January 1996
It happened only recently; just the other day geologically speaking.
A couple of hundred kilometres south-west of what is now Cairns, the Undara volcano erupted. That was 190,000 years ago.
Lava spewed from the volcano covering some 1500 square kilometres. Liquid lava is like water. It does not spread out as a sheet, but rather forms rivers. This is what the Undara lava did. One such river flowed, red-hot at 1200 degrees, for 160 kilometres before the lava stopped spewing from the volcano.
Continue reading “The wonder of Undara lava caves”