An earthquake measured at 4.5 on the Richter Scale by the Puerto Rico Seismic Network shook the islands Saturday. Termed a "felt event", the Network’s report said "this moderate earthquake was felt in all of Puerto Rico and the Virgin Islands." Its center was about 27 miles north of Tortola, 14 miles beneath the surface of the earth. Posters at USVI-On-Line said the quake lasted about 20 seconds, while resident Dennis Demar told the St. John Source he thought it was more like 40 seconds. "Eric" reported feeling earth move at Mongoose Junction, but just a bit, "a slight vibration," he said. In Coral Bay, resident Brad Felmly said, "We felt it strongly. It sounded like a freight train coming through. It shook and rattled everything but there is no apparent damage."