
Are the following mentions coreferent?:
<m> 6 . 1 - magnitude earthquake </m> in A powerful 6. 1 - magnitude earthquake strikes the northern Indonesian province of Aceh, killing at least three people and injuring dozens more across the affected region. According to the US Geological Survey, the quake hit at a depth of 10 kilometers ( 6 miles ) in the Northern Province of Aceh. An 8. 7 - magnitude earthquake also hit off the city of Banda Aceh in Sumatra Island in May 2012, triggering regional tsunami alerts. 
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<m> earthquakes </m> in A series of earthquakes killed a 10-year-old girl and injured dozens Sunday in remote eastern Indonesia and briefly triggered fears of another tsunami in a country still recovering from such a disaster in 2004. One of the quakes, a 7.3-magnitude tremor, was felt as far away as Australia and sent small tsunamis into Japan's southeastern coast. 