By: Virgin Islands Free Press News DeskCHARLOTTE AMALIE — A moderate 4.93 magnitude earthquake struck waters north of the U.S. Virgin Islands on Saturday afternoon, followed shortly by a 4.00 magnitude aftershock, according to seismic tracking network reports. The initial tremor occurred at approximately 4:00 p.m. local time, centered in the Sombrero Seismic Zone, roughly 29 miles north of Charlotte Amalie, St. Thomas. Minutes later, a 4.00 magnitude aftershock was registered in the same vicinity. Emergency Response and Community ImpactThe Virgin Islands Territorial Emergency Management Agency (VITEMA) issued a public request calling on residents across St. Thomas, St. Croix, St. John, and Water Island to report whether they felt the tremors. Regional Tectonic ContextThe Sombrero Seismic Zone, located along the active boundary between the North American and Caribbean tectonic plates, frequently experiences minor to moderate seismic activity.