A preliminary 4.2-magnitude earthquake was reported in Mendocino County, California. According to the United States Geological Survey's (USGS) website, the earthquake was reported around 5:25 p.m. PT on Tuesday, August 4 about 19.3 miles north-northwest of Covelo, California – an area around 230 miles northwest of Sacramento – and 4.7 miles in depth. There were no immediate reports of damage or injuries. This story was reported from Los Angeles.