According to Indonesia’sMeteorology, Climate and Geophysics Agency, the aftershock was centered about140km northwest of Halmahera island and 10km deep under the ocean.
No tsunami warning was given.The agency said local residents in North Sulawesi also felt the shake.
Earlier, a 7.1-magnitudequake struck the area near Ternate city of North Maluku province.
The US Geological Survey (USGS) reported thequake was centred in the sea about 140 kilometres northwest of Ternate. Theagency gave no tsunami alert.
Meanwhile, Indonesia’s Meteorology, Climate andGeophysics Agency issued a tsunami warning for North Sulawesi and North Maluku,but it was cancelled about two hours later.
There have been no reports of casualties ordamage.
Indonesia, one of the most naturaldisaster-prone nations on earth, straddles the Pacific “Ring of Fire”, wheretectonic plates collide and large portion of the world’s volcanic eruptions andearthquakes occur.
A 7.5-magnitude quake and a subsequent tsunamiin Palu on Sulawesi island in September 2018 killed more than 2,200 people,with over 1,000 more missing./.