
Are the following mentions coreferent?:
<m> shakes </m> in 4. 6 earthquake shakes Northern California March 14, 2013 - 8 : 16 am A magnitude 4. 6 earthquake struck Northern California on Thursday morning, The temblor struck about 26 miles north of Santa Rosa in the Geysers area. There were no reports of damage or injuries, but there were some apparent aftershocks. 
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<m> Shakes Up </m> in Shakes Up - North Bay March 14, 2013 5 : 22 AM An earthquake with a preliminary magnitude of 4. 6 was recorded in the North Bay Thursday morning, according to the U. S. Geological Survey. 