It was a warm afternoon and an idyllic setting, but the quiet was shattered on Wednesday in Southern California by a moderately strong earthquake that was felt in most of the area.  The temblor hit at 4:53 PM, and most people reported a similar experience.  A rumbling  was heard, followed by a wavy motion which lasted ten to fifteen seconds.  The event was centered about 28 miles south of Palm Springs, near the San Diego County town of Borrego Springs.  The US Geological Survey initially reported it as a 5.9, but it was later downgraded to a magnitude 5.4.  No immediate reports of damage or injuries surfaced, but officials near the epicenter say they expect to find cracks in structures when inspections are finalized,  The quake was felt in San Diego, Riverside, San Bernardino, Los Angeles, and Orange Counties.  Locally, our two major attractions, Knott's Berry Farm and the Disneyland Resort stopped all rides and performed thourough inspections on them before letting guests back on them.  The USGS said that this quake was a result of pressure from the Easter Sunday temblor in the same area traveling to other faults, in this case the San Jacinto Fault, and that such stress relocation lowers the chance of the expected "Big One" from happening.