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At least four land-based earthquakes of between 6.2 and 5.5 magnitude were recorded, although there were no early reports of damage or casualties.
A series of strong inland earthquakes have shaken Indonesia’s easternmost West Papua province, but there were no immediate reports of serious damage or casualties.
At least four land-based earthquakes between 6.2 and 5.5 magnitude were recorded on Saturday and centered about 37 kms (23 miles) northwest of Central Mamberamo district in West Papua, the Indonesian Meteorology, Climatology and Geophysics Agency said.
The earthquakes were measured at a depth of up to 16 kms (10 miles), the agency said.
Daryono, who heads the Earthquake and Tsunami Mitigation Division, said the quakes posed no danger of triggering a tsunami.
“There is no report on the impact of damage,” said Daryono, who goes by a single name.
He said the earthquakes were triggered by a thrust in the Memberamo Anjak fault.
Indonesia is a seismically active archipelago of some 270 million people and is frequently struck by earthquakes, volcanic eruptions and tsunamis.
Indonesia straddles the “Pacific Ring of Fire”, where different tectonic plates of the Earth’s crust meet and create frequent seismic activity.
With a population of some 1.2 million, West Papua is one of Indonesia’s least-populous provinces.
In February, a magnitude 6.2 earthquake killed at least 25 people and injured more than 460 in West Sumatra province. In January 2021, a magnitude 6.2 earthquake killed more than 100 people and injured nearly 6,500 in West Sulawesi province.
A massive earthquake off the coast of Aceh in 2004 triggered a powerful tsunami that killed an estimated 230,000 people in a dozen countries around the world.
The US Geological Survey measured the earthquakes on Saturday at between 6.1 and 5.9 magnitude at a depth of 19 to 33 kms (11.8 to 20.5 miles).
Prelim M6.1 Earthquake Papua, Indonesia Sep-09 23:31 UTC, updates https://t.co/gjZ7ajASog
— USGS Tweet Earthquake Dispatch (@USGSted) September 9, 2022
Variations in early measurements between agencies are common.
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