Two more earthquakes shook southern Mexico Saturday, further rattling a country still coming to grips with the devastation from stronger temblors earlier this month. Meanwhile, Californians are anxious about a possible Big One, because of the recent major quakes – all seemingly hitting in the “ring of fire,” where about 90 percent of seismic activity occurs. A 6.1-magnitude Mexico earthquake Saturday morning was centered in Oaxaca state near Matias Romero, a town about 275 miles southeast of Mexico

City, the U.S. Geological Survey said. Roughly speaking, the epicenter was between the centers of this month’s two more violent earthquakes – the 7.1 magnitude temblor that hit Tuesday closer to the capital, and the 8.1 magnitude quake that struck Sept. 8 off the southern Pacific coast, near Chiapas state. Another 4.5-magnitude quake hit Oaxaca at 7:06 p.m. Eastern. That temblor occurred at a depth of 8.9 kilometers, according to initial readings by USGS. READ MORE