
Are the following mentions coreferent?:
<m> struck </m> in An earthquake with a preliminary magnitude of 4.4 struck in Sonoma County this morning near The Geysers, according to the U.S. Geological Survey. The earthquake struck at about 9:30 a.m. and had a depth of 2.7 miles, according to the USGS. Previously this morning, an earthquake with a preliminary magnitude of 2.0 struck near The Geysers, according to the USGS. 
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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. 