
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> 6 . 1 magnitude earthquake </m> in A powerful 6. 1 magnitude earthquake hit Indonesia's northwestern Aceh province on the island of Sumatra early Tuesday. The epicenter of the quake was roughly 55 kilometers from the town of Bireuen, a regency of the larger Aceh province, according to data from the US Geological Survey. 