An earthquake rattled southwest Iowa, southeast Nebraska and northwest Missouri this (Friday) morning. Waverly Person, a geophysicist with the U-S Geological Survey in Golden, Colorado, says it was located about 15 miles southwest of Shenandoah according to their readings, 15 miles north of Rockport, Missouri, and 20 northeast of Auburn, Nebraska. Officials don’t know if there’s a “fault line” under that area. Person says there have been other ‘quakes not far from there, though he hasn’t seen records to see how many. Nonetheless, he says there’s no fault or feature in the region that’s ever been given a name, or even been mapped by geologists. Person says no official reports of injury or damage have been received, and they don’t really expect any with a quake of this size. It is classified as a “minor” earthquake, in the category that measure 3.0 to 3.9 on the Richter Scale, and in almost all cases, an earthquake of that magnitude won’t cause damage. Residents in the area felt the quake. Georgeanne Stephens, the city clerk in Hamburg, Iowa, says she was getting ready for work when the house shook. She ran out and asked a daughter if it was thunder or something, but nobody kenw. Even her two dogs were unsettled by the strange sensation. Jan Lewis lives in southwest Iowa just across the state line from Westboro, Missouri, and she thought it was some kind of local disaster or crash. She was in her kitchen and says it felt like someone hit her house with a truck, and then a few seconds later the whole house shook again. She called a girlfriend who lives in Westboro, Missouri, who says she was “almost knocked off her feet.” The geophysicist Waverly Person says this quake had nothing to do with the New Madrid Fault, which lies under much of Missouri, Tennessee, and Illinois, and has caused tremors that affected Iowa. A minor quake felt by some eastern Iowans on June 28 was centered in northern Illinois