On Wednesday (02nd March, 2016), a powerful and shallow 8.2 magnitude earthquake struck off the west coast of the island of Sumatra, in Indonesia. This, triggered a tsunami warning by the Indonesian and Australian government which was later lifted.
The quake struck at a depth of 10 kilometres, triggering a tsunami alert for parts of Sumatra, including West Sumatra, North Sumatra and Aceh, regions in Indonesia.
There were no immediate reports of damage, but the shallower a quake, the more likely it is to cause damage.
Indonesia has been badly devastated by the Indian Ocean tsunami in 2004, bestrides the so-called "Pacific Ring of Fire", a highly seismically active zone where different plates on the Earth's crust meet and create a large number of earthquakes and volcanoes.
The 2004 9.15-magnitude tsunami killed 230,000 people in a dozen countries. Most of the deaths were in Aceh province region in Indonesia.