“A powerful and extremely deep earthquake struck near remote Japanese islands, and shook most of the country Saturday evening. However, officials said there was no threat of a tsunami, and no injuries or damage were immediately reported.
The earthquake struck near the Ogasawara islands at a depth of 590 kilometers (370 miles), Japan’s Meteorological Agency said. Although some initial reports logged the quake as an 8.5-magnitude event, the U.S. Geological Survey said the quake had a magnitude of 7.8 and a depth of 678 kilometers (421 miles).”
Source: 7.8-magnitude earthquake hits off the coast of Japan