
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. 
</s>
<m> quake </m> in Good sized quake at the California Geysers I felt this one pretty good. I'm located 25 miles south of the quake. A 4. 4 quake is on the large size for The Geysers. 