Articles on Geology

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A rockfall following the Christchurch earthquake in New Zealand in 2011. Reuters/Tim Wimborne

Humans can make rockfalls from earthquakes more dangerous

A new study of the 2011 Christchurch earthquake shows boulders from rockfalls fell much further than in earlier quakes that happened before humans arrived and changed the landscape.
A satellite image of the 2004 boxing day tsunami striking the southwestern coast of Sri Lanka. Could a similar tsunami hit Australia? AAP

Making waves: the tsunami risk in Australia

Australia is surrounded by ocean, so is not immune to the effects of tsunamis. But how significant is the risk?
ESA’s Swarm constellation reveals new rapid changes of our magnetic field, tied directly to the heart of our planet’s molten iron core. ESA/ATG Medialab

Earth’s magnetic heartbeat, a thinner past and new alien worlds

Space research never stops and it seems neither do the surprises. On ABC Breakfast News I covered some huge results from the last few weeks. Be still my beating (magnetic) heart Earth’s magnetic field…
The recent earthquakes in Japan and Ecuador were large, but were they connected? EPA/Everett Kennedy Brown

Are the Japanese and Ecuador earthquakes related?

When two major earthquakes occur within days of each other thousands of kilometres apart, it can look like they're connected. But are they? Here's what the science says.
This enhanced colour image shows the traces of carbon on the surface, coloured here in blue. NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Discovery of carbon on Mercury reveals the planet’s dark past

The discovery of carbon in the form of graphite on the surface of Mercury helps explain the mystery of why the tiny planet is so unusually dark.

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