The quake was too deep to prompt a tsunami warning, said Robert Cessaro at the United States National Weather Service's Pacific Tsunami Warning Centre.
An official at Indonesia's Meteorological agency said by telephone that it struck an area on the northern coast of West Java.
"There has been no damage or casualties reported so far," the official said by telephone, adding that the quake could be felt as far away as Padang in Sumatra and the resort island of Bali.
Strong quake hits Indonesia, no damages
Expressindia.com