
Are the following mentions coreferent?:
<m> 7.5 magnitude </m> in As aid started to arrive, hundreds of aftershocks continued to rattle the coastal city which was hit by the 7.6 and 7.5 magnitude quakes early on Sunday, cutting power and prompting a brief tsunami warning. 
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<m> 6 . 1 magnitude earthquake </m> in Powerful 6. 1 magnitude earthquake injures dozens in Indonesia's Aceh province Powerful 6. 1 magnitude earthquake injures dozens in Indonesia's Aceh province 