The US Geological Survey confirmed on December 4, local time, that its automatic seismic detection system erroneously issued an alarm earlier that day, saying “a 5.9 magnitude earthquake occurred at 8:06 a.m. local time near the Dayton area of Nevada.” However, no earthquake actually occurred, and relevant information has been removed from the US Geological Survey website and data feed.

The US Geological Survey confirmed on December 4, local time, that its automatic seismic detection system erroneously issued an alarm earlier that day, saying “a 5.9 magnitude earthquake occurred at 8:06 a.m. local time near the Dayton area of Nevada.” However, no earthquake actually occurred, and relevant information has been removed from the US Geological Survey website and data feed.