JAKARTA, Dec 2 (Reuters) - An earthquake measuring 6.0 on the Richter scale shook the western part of Indonesia's Java island on Sunday, but there were no immediate reports of damage or casualties, the meteorology agency said.

The undersea quake had a depth of 32 km (20 miles) and was centred 78 km southeast of Ujungkulon in the western tip of Java.

An official at the meteorology agency said the quake was felt strongly in the Pelabuhan Ratu resort area but there were no immediate reports of damage or injuries.

Indonesia sits on the so-called Pacific Ring of Fire prone to seismic upheavals.

(Reporting by Mita Valina Liem and Ahmad Pathoni)

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