Rare, strong earthquake jolts Antarctica SANTIAGO (Xinhua): An earthquake registering 6.3 on the Richter scale rocked Antarctica at 2031 GMT Friday, the Chilean national TV station reported.According to the survey of the U.S. geological research bureau, the epicenter of the quake was 3,641 kilometers from Punta Arenas, Chile's southern most city.Earthquakes rarely hit Antarctica, and their scales are normally small.The Hindu News Update Service