Just after 8 a.m. Bay Area residents received a MyShake alert warning of magnitude 5.9 earthquake hitting east of Carson City, Nevada close to the Lake Tahoe region. The quake also appeared on the USGS map of latest earthquakes. But within minutes the report of the quake disappeared on the USGS page.

An earthquake of magnitude 5.9 shook Nevada on Thursday morning, according to the United States Geological Survey. Phones buzzed as far away as San Francisco, though no shaking was evident in much of the Bay Area.

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.

The U.S. Geological Survey is investigating the cause of a false alert sent out reporting a 5.9 earthquake that never occurred Thursday morning. An automatic detection system triggered cell phone alerts to a large

A 5.9 magnitude earthquake near Dayton, Nevada, was a “bogus event,” according to the United States Geological Survey. Millions of residents from Nevada to California received an alert informing them of an earthquake just after 8 a.m. PT.

Paul Earle, director of the USGS National Earthquake Information Center, told SFGATE that the alert was an “errant message from earthquake early warning system” and said the agency is investigating what triggered the bogus notification. The phantom quake briefly showed up on USGS feeds before being deleted.

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DeGroot said after the sensors picked up motion the information was automatically moved to a processing center where it made the determination a magnitude 5.9 earthquake had occurred. "It did exactly what it was supposed to do,