
Are the following mentions coreferent?:
<m> earthquake </m> in A 4.2 magnitude earthquake shook a remote area of eastern Sonoma County on Sunday morning, the largest in a flurry over the weekend, according to the U.S. Geological Survey. The size of Sunday morning's earthquake caught the attention of people in Cobb, a small community along Highway 175 in Lake County, 4 miles east of The Geysers. 
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<m> earthquake </m> in A light earthquake has struck Northern California, and there are no reports of injuries or damage. The U.S. Geological Survey says the 4.4-magnitude temblor on Sunday at 9:27 a.m. was centered 23 miles north of Santa Rosa, and two miles from The Geysers. 