The back-to-back quakes hit as California sees a recent uptick in seismic activity. Southern California has dealt with a string of small earthquakes in recent weeks, including more than 60 low-magnitude quakes recorded across the region in a single recent Saturday, most of them registering below significant thresholds.
Neither of Sunday's quakes caused reported damage, but the timing adds to a pattern that has residents across the state on edge. The tremors were felt across a wide stretch of the Bay Area, a reminder of how far even moderate quakes can travel along California's fault lines. For local residents, two jolts before breakfast is starting to feel less unusual than it used to.
Scientists have not tied the weekend quakes directly to the broader swarm of small tremors hitting Southern California, but the frequency alone has geologists watching closely. Still, nobody can say for certain what comes next.