This is a list of earthquakes in 2023. Only earthquakes of magnitude 6 or above are included, unless they result in damage or casualties, or are notable for some other reason. All dates are listed according to UTC time. The maximum intensities would be based on the Modified Mercalli intensity scale, and all data are sourced from the United States Geological Survey.
It was an aftershock of the 2022 Ferndale earthquake. Broken windows, large cracks in buildings and power outages were reported in Humboldt County. Some houses were badly damaged after being shaken from their foundations.[2]