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Articles on Magma

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Earth experiences constant volcanic activity - here’s Indonesia’s Mount Anak Krakatau (Child of Krakatoa) photographed in July 2018. EPA/AAP

I’ve Always Wondered: Why are the volcanoes on Earth active, but the ones on Mars are not?

Compared to Earth, more “oomph” is required to bring magma to the surface of Mars, and this is probably why we haven’t seen any recent eruptions on the red planet.
Lifeguards and volunteers run across an ash covered slope after the June 3 eruption of the Fuego volcano in Guatemala. Esteban Biba/AAP

From Kilauea to Fuego: three things you should know about volcano risk

Important points about volcanoes: location matters, explosiveness can be predicted to an extent, and fast-moving flows of volcanic materials (known as pyroclastic flows) are deadly.
In the field studying the rock association in the Doolena Gap greenstone belt, 30 km north of Marble bar in the Pilbara region of Western Australia. David Murphy

How the Pilbara was formed more than 3 billion years ago

The remote Pilbara region of Western Australian formed many billions of years ago when the Earth was much hotter and the crust softer than it is today.
Seismic shockwaves after a meteorite’s collision could affect systems all over the planet. solarseven/Shutterstock.com

More bad news for dinosaurs: Chicxulub meteorite impact triggered global volcanic eruptions on the ocean floor

Research suggests a new threat to life on Earth from the meteorite’s crash: Via seismic waves, the impact triggered massive undersea eruptions, as big as any ever seen in our planet’s history.
Mount Ngauruhoe, in the foreground, and Mount Ruapehu are two of the active volcanoes in the Taupo volcanic zone. Guillaume Piolle/Wikimedia Commons

Satellites reveal melting of rocks under volcanic zone, deep in Earth’s mantle

New research shows that satellite measurements of tiny movements of the Earth’s surface can tell scientists what is happening in the deeper layers of our planet.

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