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Articles on Volcanology

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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.
Some explosive volcanoes can send ash high up into the sky and it can travel around the world over different countries. Shutterstock

Curious Kids: Why do volcanoes erupt?

When magma rises towards the surface gas bubbles start to form. Whether or not they can escape as the magma is rising affects how explosive the eruption will be.
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.
A massive fast moving lava flow from Kilauea consumes everything in its path, as the flames from the remnants of one home burns on the left, while it approaches another on the right. EPA/Bruce Omori/Paradise Helicopters

Eruptions and lava flows on Kilauea: but what’s going on beneath Hawai'i’s volcano?

The current eruption of Kilauea on Hawai'is big island can tell us a lot about what is going on beneath the volcano and may provide lessons for future eruptions.

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