What caused the Myanmar earthquake - and why did it make a tower in Bangkok collapse?

A major earthquake in Myanmar on Friday has caused more than 1,600 deaths and led to the collapse of numerous structures.

Even though the south-east Asian nation is a high risk region for earthquakes, neighbouring Thailand and China - which were also affected by the quake - are not.

The Thai capital, Bangkok, sits more than 1,000km (621 miles) from the epicentre of Friday's earthquake - and yet an unfinished high-rise building in the city was felled by it.

Here we will explain what caused this earthquake, and how it was able to have such a powerful effect so far away. READ MORE from BBC