Earthquakes
2 Moderate Earthquakes Shake Southern California, Centered in Ontario Epicenter of earthquakes ONTARIO, CA – Southern California experienced a jolt on Saturday morning as two moderate earthquakes struck the region, with epicenters in Ontario. The initial quake, measuring 3.5 in magnitude, occurred at 10:05 a.m., followed by a stronger 3.9 magnitude tremor about 30 minutes…