A prison official examines damage to the prison wall that collapsed after this week’s earthquake in Banda Aceh, Indonesia. Hotli Simanjuntak/EPA

The Sumatran earthquake didn’t cause a tsunami because …

The earthquake that struck roughly 400km off the coast of Sumatra on Wednesday reminded us all that our planet hasn’t gone to sleep. Big earthquakes can happen at any time and often have severe consequences…
Is earthquake prediction even possible? Soe Than WIN/AFP

Revealing cracks in seismology

Why have so many lives been lost in Japan and New Zealand recently? And why have so many survivors – the so-called “lucky ones” – had their livelihoods and homes destroyed? As a seismologist, I ask myself…

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