(LA Times) – If you live in Fontana, you wouldn’t be blamed if you felt a case of the jitters. A swarm of earthquakes has shown remarkable staying power in the area around the Southern California city. Caltech seismologist Egill Hauksson said the chance that the series of tremors will turn into a large and destructive quake isn’t particularly high. But that doesn’t mean residents shouldn’t be on their toes. The likelihood of a larger seismic event, given how many quakes that have occurred over such an extended period, is higher than normal, the scientist said.

“People ought to be concerned,” said Hauksson. “This is probably the most prolific swarm in that area of the Fontana seismic zone that we’ve seen in the past three decades.” There have been more than 700 earthquakes recorded in the Fontana area since May 25, ranging from magnitude 0.7 to magnitude 3.2, recorded Wednesday at 5:20 p.m., according to Caltech staff seismologist Jen Andrews. Three of the quakes have been of magnitude 3 or greater. The swarm initially moved northward, but something unusual began Friday when the swarm turned around and went south, back toward the middle of the activity and the 60 Freeway. READ MORE

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