Return to shake Japan: 6.2 richter off the coast of Hokkaido

November 24, 2011 - It seems the wake Japan after a period of relative seismic calm today and 'been an earthquake of magnitude 6.2 on the Richter scale off the island of Hokkaido , the event, which occurred at sea, at a depth ' of 43.3 km according to data from the U.S. seismological USGS , the earthquake's epicenter, and 'was located about 122 km SSW of the island of Hokkaido Obihiro.