Seismic Swarm Shaking Up Imperial Valley

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"It's an area where the geothermal power plants are, it's where there's magma relatively close below the surface and it's a very famous area for having swarms of earthquakes," Abbot said.

The good news, he said, is the earthquakes related to the Easter quake and the swarm are expected to be small-magnitude quakes.

He said the quakes the area is experiencing now are not on the San Andreas fault, which begins a little further north.

However, when that fault moves, it's going to be big.