updated 10/2/2004 4:37:49 PM ET 2004-10-02T20:37:49

Two earthquakes struck early Saturday in the same part of California that was rocked by a powerful temblor earlier in the week.

The largest, a 4.0-magnitude quake, hit at 5:22 a.m. 10 miles southwest of Paso Robles. It followed a 3.2-magnitude quake that struck at 12:04 a.m. 22 miles northeast of Paso Robles.

San Luis Obispo County fire officials said they had received no reports of damage or injuries.

Paso Robles is about 25 miles southwest of Parkfield, where Tuesday’s 6.0-magnitude quake was centered. That quake damaged some homes and a winery but did not cause any injuries.

Parkfield, known as the earthquake capital of California, has been a focus of geologists for years because it sits on the San Andreas fault and has had regular earthquake activity for a century.

Saturday’s earthquakes were among hundreds of temblors to hit the area since Tuesday.

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