Why is it in news?
- The death toll from a tsunami that hit the Indonesian islands of Java and Sumatra after the Anak Krakatau volcano erupted rose to at least 280
What caused a tsunami?
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When most people think of tsunamis, images of ground-rattling earthquakes usually follow.
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These are some of the most common sources of the devastating walls of water.
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Movements in the ocean crust can displace the overlying chunk of water causing waves to pile up and crash into nearby shores.
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In this case, the most likely culprit is Anak Krakatau.
Source
The HIndu