
Are the following mentions coreferent?:
<m> according to </m> in According to the U.S. Geological Survey, a 4.2 magnitude earthquake shook a remote area of eastern Sonoma County, the largest in a flurry over the weekend. According to the USGS, the area has no fault, but the pumping of water from plants into the ground periodically induces small temblors. 
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<m> reported </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. 