7.5 Quake Triggers Tsunami Alert
A powerful 7.5-magnitude earthquake struck off the coast of southern Argentina early this morning, triggering tsunami alerts across parts of southern South America and Antarctica. The U.S. Geological Survey reported the quake’s epicenter about 200 kilometers south of Puerto Williams at a depth of 10 kilometers. At least four aftershocks followed the initial tremor. Officials warned that tsunami waves up to nine feet could strike Chile’s Magallanes Region, while Antarctica may experience…