A 3.4-magnitude earthquake strikes Ontario, California.

Image Credit: VolcanoDiscovery
Minutes ago the United States Geological Survey (USGS) reported that a 3.4-magnitude earthquake struck 4.2 miles southeast of Rancho Cucamonga, San Bernardino County, California, USA.
The exact magnitude, epicenter, and depth of the quake might be changed again later on as seismologists review their data and calculations, or else as other agencies issue their own reports, but it is unlikely.
The earthquake was felt as a weak shaking in a number of towns or cities which include Ontario, Ranchocucamonga,Eastvale, Upland, Fontana Pomona, Rialto, Riverside, Anaheima and Sacramento.