California-Nevada Quake

USGS deletes 5.9 quake in Nevada

Nevada earthquakes? USGS sent an alert but here's what really happened

A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near Carson City in western Nevada could produce heavy shaking in the region.

· 2d · on MSN

USGS says alerts for magnitude 5.9 earthquake in Nevada were a false alarm

· 2d

Magnitude 5.9 earthquake shakes Nevada, can be felt in California

· 2d

False Report of 5.9 Earthquake Sends Phones Buzzing in Nevada

An alert that Nevada had been rocked by a 5.9-magnitude earthquake early Thursday sent phones buzzing briefly before the U.S. Geological Survey quickly deleted the warning from its web page and said i...

· 1d

Alert and Story on Nevada Earthquake Withdrawn After USGS Reports System Error

Santa Rosa Press Democrat · 2d

Did you get that 5.9 quake alert? USGS says it shouldn’t have gone out

KTVU FOX 2 on MSN

USGS deletes 5.9 quake in Nevada from its website

The Shake Alert seismology team said they are now working to review the data, but that it appears the faulty alert might've been caused by a software error.

21hon MSN

Mysterious trigger set off earthquake sensors causing false alert in Bay Area

Robert DeGroot, operations team lead for the USGS-managed ShakeAlert Earthquake Early Warning System, told SFGATE that at least four sensors across Nevada detected motion, leading to an automated warning sent out via MyShake Alert to a large portion of California.

KQED

False Earthquake Alert Likely Triggered by ‘Something Out in the Field,’ USGS Says

“On December 4, 2025, the ShakeAlert EEW system released an incorrect alert for a magnitude 5.9 earthquake near Reno and Carson City, Nevada,” the statement read. “The event did not occur, and has been deleted from USGS websites and data feeds. The USGS is working to understand the cause of the false alert.”

9hon MSN

Evacuation order lifted after 7.0 earthquake detected in California

A tsunami warning was issued in California after an offshore earthquake measuing 7.0 on the Richter scale was detected. The quake was recorded 60 miles off the coast of northern California at around 11am local time on Thursday,