Awwal 19, 1432, April 23, 2011, SPA -- A magnitude-6 earthquake struck north-eastern Japan Saturday, the Meteorological Agency said. No immediate casualties or damage were reported, and no tsunami warnings were issued. No further damage was reported at the stricken Fukushima Daiichi Nuclear Power Station, which was crippled by the March 11 earthquake and tsunami, according to a report of the German Press Agency "DPA". The quake occurred at 7:13 pm (10:13 GMT) with an epicentre off the east coast of Iwate Prefecture at a depth of 10 kilometres, the agency said. The same region was hit by the March 11 magnitude-9 earthquake that caused a tsunami. That disaster left 14,238 people dead and 12,228 missing, the National Police Agency said.