Hong Kong and Macao are enormous, sprawling economic centres perched on the coast. And both stand a 10 per cent chance of being hit by a serious tsunami in the next century, warn geophysicists. The warning follows a new assessment of how earthquakes along the nearby Manila trench could radiate tsunami waves across the South China Sea.
http://environment.newscientist.com/article/dn12544-tsunami-risk-for-hong-kong-and-macao.html