Recent seismic excitement in the area of the 1887 Great Sonoran Earthquake

From the Arizona Geological Survey:

On July 31, 2021, a magnitude (M) 5.2 earthquake occurred in northeastern Sonora, in the area where the Great Sonoran earthquake occurred in 1887. This earthquake is the largest in that area for many decades, probably for more than 100 years. In addition, several M3-3.5 earthquakes occurred in the following weeks 100 km to the north in the bootheel of New Mexico. (read more)

See also: The Great Arizona-Sonora Earthquake of 1887