A magnitude 4.7 earthquake was reported at 11:55 p.m. Sunday 177 miles from Eureka, Calif., according to the National Oceanic and Atmospheric Administration’s Tsunami Warning System.
The earthquake occurred farther than 100 miles from a city.
A few minutes later, a magnitude 5.5 quake hit the same area offshore, according to the U.S. Geological Survey.
At about the same time, a magnitude 5.0 quake was recorded 26 miles from Fortuna, which is just south of Eureka, at a depth of nine miles.
In the last 10 days, there have been no earthquakes of magnitude 3.0 or greater centered nearby.
An average of five earthquakes with magnitudes between 5.0 and 6.0 occur per year in California and Nevada, according to a recent three-year data sample.
The Eureka earthquake occurred at a depth of 6.2 miles. Did you feel this earthquake? Consider reporting what you felt to the USGS.
Find out what to do before, and during, an earthquake near you by reading our five-step earthquake preparedness guide.