A series of strong inland earthquakes has shaken Indonesia's easternmost province, but there were no immediate reports of serious damage or casualties.
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The Indonesian Meteorology, Climatology and Geophysics Agency said at least four land-based earthquakes between 6.2 and 5.5 magnitude were centred 37 kilometres northwest of Central Mamberamo district of West Papua province at a depth up to 16km.
Those earthquakes posed no danger of triggering a tsunami, said Daryono, who heads the Earthquake and Tsunami Mitigation Division.
He said the earthquakes were triggered by a thrust in the Memberamo Anjak fault.
"There is no report on the impact of damage," said Daryono, who goes by a single name.
The US Geological Survey measured the quakes between 6.1 and 5.9 magnitude at a depth of 19-33km. Variations in early measurements are common.
With a population of about 1.2 million, West Papua is one of Indonesia's least-populous provinces.
Indonesia is a seismically active archipelago of 270 million people that is frequently struck by earthquakes, volcanic eruptions and tsunamis.
Australian Associated Press
