An magnitude-3.0 earthquake centered in South Pasadena caused shaking Tuesday in the Los Angeles area.
The quake, reported at about 3:05 p.m., was in roughly the same location as a magnitude-3.5 earthquake on Sunday.
The USGS recorded three earthquakes in the area since Sunday’s shaking with Tuesday’s being the largest magnitude.
Aftershocks, a smaller earthquake after a larger earthquake or mainshock in the same general area, can occur days and even years after the mainshock, but their frequency decreases over time.
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