
Are the following mentions coreferent?:
<m> 6 . 1 - magnitude earthquake </m> in A powerful 6. 1 - magnitude earthquake struck the Indonesian province of Aceh with no tsunami warning issued, the US Geological Survey said, sending people running into the streets in panic. A strong 6. 1 - magnitude earthquake struck the northwestern Indonesian province of Aceh on Tuesday, the US Geological Survey said, sending people running into the streets in panic. 
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<m> tremor </m> in Indonesia's West Papua province was hit by a magnitude 6.1 earthquake today, the latest powerful tremor to shake the region where five people were killed and hundreds injured at the weekend when buildings were destroyed. The quake struck off the coast at 7:48 a.m. local time, 75 kilometers ( 50 miles ) west of the region's main city of Manokwari. There were no immediate reports of damage or casualties and no tsunami alert was issued. 