A shallow earthquake with a magnitude of 6.4 struck off the western part of Java in Indonesia on Friday, Meteorology and Geophysics Agency said.

The quake occurred at 16:52 Jakarta time (0952 GMT) with the epicenter 42 km northwest of Ujung Kulon of Banten province in western Java and 10 km under sea bed, an official with the agency Rahmat Triyono told Xinhua.

The shake was felt in Jakarta, triggering panic among people working in high buildings.

The intensity of the quake was felt at 4 to 5 MMI (Modified Mercally Intensity) in Ujung Kulon, 2 to 3 in Jakarta and 3 to 4 at Sukabumi of West Java province, he said.

The disaster management agency and the Health Ministry both confirmed there were no initial reports of damage or casualties.

Triyono said only earthquakes measured more than 7.0 magnitude may cause tsunami.

Indonesia, with a population of 230 million, sits on a quake- prone zone called the Pacific Ring of Fire, where two continental plates, stretching from Western hemisphere to Japan, meet that causes frequent and seismic and volcanic movements.