A strong but deep earthquake with a preliminary magnitude of 6.9 has struck the Pacific Ocean near Japan’s Bonin Islands, with light shaking felt as far away as Tokyo, according to seismologists. No tsunami warnings were issued. The earthquake, which struck at 5:35 p.m. local time on Saturday, was centered in the ocean about 270 kilometers (168 miles) northwest of Ogasawara, the main settlement in the island group. The Bonin Islands, which are also known as the Ogasawara Islands, are located far from Japan’s mainland, about 978 kilometers (608 miles) south of Tokyo. Saturday’s earthquake had a…