People worried following the earthquakes
Media playback is unsupported on your device

Why the Indonesia earthquakes had minimal impact

A tsunami watch declared after two major earthquakes off the coast of Indonesia's Aceh province has now been cancelled, the Pacific Tsunami Warning Center says.

Two hours after the quakes - one with a magnitude of 8.6, the other measuring 8.3 - the centre says "the threat has diminished or is over for most areas".

The alerts caused panic as people fled buildings and made for high ground.

John McCloskey, a geophysics professor at the University of Ulster, explained why the impact had been minimal.

  • 11 Apr 2012