A magnitude 3.3 earthquake occurred at 12:36 p.m. Sunday along the Camp Pendleton coastal line, generating brief, minor shaking in North County, according to the US Geological Survey.

Multiple small earthquakes struck Monday morning, centered near San Ramon, according to the United States Geological Survey. There have been dozens of small earthquakes reported in the San Ramon area throughout the day, according to the USGS. Here's a breakdown of some of the stronger reported earthquake activity:

A 3.3 magnitude earthquake struck off the coast of Orange County, California, causing weak to light shaking to be felt as far north as Fullerton and Anaheim, and as far south as Mira Mesa and Scripps Ranch,

The ShakeAlert system that warns about imminent shaking arriving from earthquakes sent a false alarm across California on Thursday morning for a magnitude 5.9 temblor that did not happen.

A notification about a magnitude-5.9 earthquake in western Nevada near the California border was a false alert, the USGS said.