A series of powerful earthquakes, including one measuring 7.4 magnitude off the southern coasts of Chile and Argentina, have triggered tsunami warnings and evacuation orders. The US Geological Survey reported various quakes in the region, with the most significant tremors occurring in the Drake Passage and near Ushuaia city in Argentina. Authorities in Chile have begun evacuating remote coastal areas as they prepare for potential hazardous tsunami waves. Both countries are on high alert as the situation develops.