The tremor struck just 6km (3.7 miles) off the coast of Colma, just south of San Francisco, on Saturday morning, according to the US Geological Service. An earthquake of this magnitude is strong enough to cause minor damage, but typically results in only shaking and rattling of objects indoors.

Though Saturday’s quake was relatively minor, California has been hit with a bevy of similar tremors in recent days. At least five quakes registering between 2- and 2.9-magnitude struck the Bay Area on Tuesday, and eight quakes of above magnitude 3.0 were recorded further inland.

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