In Indonesia, a shallow 5.1-magnitude earthquake rocked  Sulawesi island today. the US Geological Survey said the quake struck 11 kilometres east of Mamasa in west Sulawesi at 2:35 am. <br />''<br />''<br />''No tsunami warning was issued.It comes after a 7.5-magnitude quake and a subsequent tsunami razed swathes of the city of Palu on Sulawesi island on September 28.The disaster killed more than 2,000 people and displaced more than 220,000.<br />''<br />