For the latest installment of our “Masters of Disasters” series, we talk tsunamis in the wake of a volcanic eruption near Tonga last month that caused waves felt across the Pacific. There was none of the devastation like the world saw in Fukushima in 2011, or across the Indian Ocean in 2004. But what happened in Tonga got us thinking: How are the effects of tsunamis so devastating, yet so little is known about them?

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