
Are the following mentions coreferent?:
<m> shakes </m> in The Napa Valley was shaken at 2 : 09 a.m. Thursday by a magnitude 4. 6 earthquake located near Clearlake in Lake County, the U. S. Geological Survey reported. The temblor rattled homes in Napa, but would not have been expected to do any local damage. 
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<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. 