That is all I need - a shorter day! Researchers at NASA calculated that the Chilean earthquake shortened Earth's days. It shortened by one-millionth of a second, still small but shorter. I think this is a second earthquake in a decade to result in a shorter day.
Well, these earthquakes did shake the world enough to relocate cities in Chile. Researches found that cities and islands physically shifted west. From the satellite data, scientist at Ohio State University and University of Hawaii found that city of Concepcion moved about 3 meters to the west. When compared to Earth size it may not be big shift, but to me three meters is a lot. In addition, the Chile's capital Santiago moved only 30 centimeters. Buenos Aires in Argentina moved 2.5 cm.
Scientists say that this usually happens with earthquakes, but usually too small to notice. However, this time it was definitely noticed.