Jakarta: A deep undersea earthquake hit off the coast of Indonesia's main island of Java on Tuesday, but no injuries or serious damage were reported.
The US Geological Survey said the earthquake measured 6.6 magnitudes and was centred about 94 kilometres (58 miles) north of Batang, a coastal town in Central Java province.
It was about 528 kilometres (328.5 miles) deep.
The Indonesian Meteorology, Climatology and Geophysics Agency said the temblor was 6.1 magnitude and was unlikely to trigger a tsunami.
Daryono, an agency's official who goes by a single name, said people felt mild shaking as far as Bali island as the epicentre was very deep.
Indonesia is prone to earthquakes and volcanic eruptions. A powerful Indian Ocean quake and tsunami in 2004 killed a total of 2,30,000 people in a dozen countries, most of them in Indonesia.
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(With inputs from AP)