A person of the Salvadorean National Service of Territorial Studies (SNET, by it's acronym in Spanish) points a map which shows the location of an earthquake in San Salvador city, capital of El Salvador, on Aug. 27, 2012. A 7.3-magnitude earthquake jolted off the coast of El Salvador late Sunday, triggering a brief tsunami warning along central American coast but causing no major damage or casualties. [Xinhua]