Cluster of earthquakes strike Ventura for second consecutive day

VENTURA, Calif. - A series of small earthquakes centered in Ventura struck Friday morning, the day after being hit by a surge of quakes, according to the U.S. Geological Survey. 

The activity is defined as an "activity swarm," according to Dr. Lucy Jones.

The first earthquake, recorded at a 3.5 magnitude and a depth of 10 miles, struck at 4:10 a.m. 

Just over an hour later, a second quake struck at 5:29 a.m. The 3.6-magnitude earthquake had a recorded depth of 7 miles. 

Within eight minutes, a 3.2-magnitude tremblor with a depth of 6 miles followed at 5:37 a.m. 

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There were no immediate reports of damage or injuries.