An earthquake sent a jolt through San Diego County early Tuesday morning. The sensation was more of a short burst of shaking at 3:52 a.m.
What's significant about this morning's quake is that it is considered an aftershock to the 7.3 quake that struck on Easter Day.
San Diego State University professor Pat Abbott said it's not unusual to have an aftershock this late after the first quake.
"It is indeed typical to have an aftershock this long after the big one. Usually aftershocks at this time are very very small because the main shock was small," Abbott said.
A preliminary report says this morning¹s aftershock was about 7 miles deep.
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