An employee of Japan's Meteorological Agency points on a graph showing ground motion waveform data observed at Matsushiro Seismological Observatory in central Japan after a major earthquake struck off the coast of the Indonesian island of Sumatra, during a photo opportunity at Japan's meterological agency in Tokyo April 7, 2010. In Japan, shakes relating to the earthquake were not felt physically and tsunami warnings were not sounded, a spokesperson said. REUTERS/Yuriko Nakao (JAPAN - Tags: ENVIRONMENT DISASTER)