3.1-Magnitude Earthquake Reported Off Coast of Coronado - NBC 7 San Diego

3.1-Magnitude Earthquake Reported Off Coast of Coronado

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    A 3.1-magnitude earthquake was reported about 40 miles off the coast of Coronado Saturday evening around 7 p.m.

    Geologists say the earthquake was most likely a single event - but there's always the chance that it's the foreshock of something bigger.

    “Every one of those islands out there is being lifted up by active faults, that’s why those islands are there,” explained Pat Abbott, Ph.D., SDSU Professor Emeritus of Geology.

    “When we get an earthquake like this one that just happened, those are the island building, island lifting events,” he said.

    Dr. Abbott says San Diegans are usually concerned with the threat of earthquakes from the east, but the threats from the west should be taken just as seriously.