MANILA, June 15 (Reuters) - An earthquake of magnitude 6.3 struck the Philippines' main island on Thursday, authorities said, halting some railway operations in the capital Manila. No casualties or major damage were reported after the quake, which struck out at sea at a depth of 10 kilometres (6.21 miles) and was felt in nearby provinces, the Philippine seismology agency said. Operations of the three elevated railway lines in Manila were stopped due to the earthquake, the transport ministry said. The seismology agency initially recorded a magnitude 6.2 earthquake, but later revised it to 6.3. Reporting by Jahnavi Nidumolu in Bengaluru, Enrico Dela Cruz and Neil Jerome Morales in Manila; Editing by Kanupriya KapoorOur Standards: The Thomson Reuters Trust Principles.

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Persons: Bernardo Rafaelito Alejandro, Ferdinand Marcos Jr, Peter Oliver Palacio, Jahnavi, Enrico Dela Cruz, Neil Jerome Morales, Kanupriya Kapoor Organizations: Railways, GMA, Thomson Locations: MANILA, Philippines, Manila, Philippine, Calatagan, Bengaluru