
Are the following mentions coreferent?:
<m> California earthquake </m> in A California earthquake today 2013 has erupted outside Santa Rosa. The strong and shallow quake began in the predawn morning hours today Thursday, March 14, 2013. Officials tell news that a 4. 6 magnitude California earthquake began today shortly after 2 : 09 am PST. The quake was northwest of Sacramento and Woodland and Roseville, north of Santa Rosa and San Francisco, and south of Mendocino National Forest. 
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<m> quake </m> in A powerful earthquake centered near The Geysers shook not just communities on Cobb but startled residents in other parts of the county and even in other states. The 4.2-magnitude earthquake was recorded at approximately 9:27 a.m. Sunday, according to the US Geological Survey, which originally had rated the quake as 4.4 in magnitude. At 9:32 p.m., it was followed by a 2.0-magnitude centered quake two miles east of The Geysers and four miles southwest of Cobb, at a depth of two-tenths of a mile. 