OSAKA -- A strong earthquake measuring an estimated magnitude of 5.2 jolted a wide area of western Japan on Monday morning, the largest aftershock from the powerful 6.4 magnitude quake that hit the region Saturday, the Meteorological Agency said.
That first temblor left two people dead and at least 185 injured.
There are no reports of injuries or damage from the 5:41 a.m. quake. No tsunami warning was issued.