Location of earthquake off San Diego
U.S. Geological Survey map shows the location of the earthquake off San Diego.

A small earthquake struck off the San Diego coastline on Saturday evening, the U.S. Geological Survey reported.

The quake, with a preliminary magnitude of 3.1, was detected 39 miles southwest of Coronado shortly after 7 p.m., according to the USGS.

However, the temblor appears to have made little impact in the San Diego region, with the USGS “Did You Feel It?” website showed just one response.

— City News Service

Chris Jennewein is founder and senior editor of Times of San Diego.