Another earthquake
On Monday 28 March - at around 23.00 local
time - an earthquake registering 8.7 on the Richter scale shook Sumatra. It was felt as far away as Singapore, but Nias - a small island off Sumatra's west coast - took the brunt of the quake. Although tsunami warnings were issued as a precaution, no wave appeared.
The quake revived fears of another tsunami in the region. Antenna asked earthquake experts what caused the Boxing Day tsunami and whether we'll see another wave like it...
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