A 5.5 magnitude earthquake struck Ibaraki Prefecture, eastern Japan, on Tuesday evening at 7:46 p.m. local time. The Japan Meteorological Agency reported the quake’s depth at 50 kilometers. While the tremor was felt across a wide area, including Tokyo, there were no immediate reports of casualties or significant damage. Authorities have confirmed there is no threat of a tsunami. The quake briefly prompted checks at nuclear power plants in the region, with no irregularities reported. Residents are advised to remain vigilant for potential aftershocks.