Undersea earthquake of 7.3 magnitude hits southeast of Philippines: USGS

(Reuters) - A major undersea earthquake with a magnitude of 7.3 struck southeast of the Philippines on Tuesday, the U.S. Geological Survey (USGS) said. The quake was measured at a depth of 617 km (380 miles), the USGS said. (Reporting by Michael Perry; Editing by Paul Tait)