Significant earthquake prompts tsunami warning in southern Chile

On May 2, 2025, a significant earthquake measuring 7.4 in magnitude struck off the southern coasts of Chile and Argentina, specifically affecting the Magallanes region of Chile and the nearby Argentine city of Ushuaia. The United States Geological Survey (USGS) indicated that the quake's epicenter was located under the ocean, approximately 219 kilometers (around 136 miles) south of Ushuaia, at a depth of 10 kilometers (6 miles). The shockwaves were felt prominently in Ushuaia and, to a lesser extent, in surrounding towns across the province. Fortunately, initial reports indicated that no damage or casualties were reported from the incident. In response to this natural disaster, Chilean authorities moved quickly to issue a tsunami warning for parts of the Magallanes region, which is located at the southern tip of the country, as well as sections of the Chilean Antarctic Territory. Evacuation orders were disseminated by Chile's National Service for Disaster Prevention and Response, urging residents to leave coastal areas and seek safety in higher ground. Concurrently, local authorities in Argentina suspended all types of water activities and navigation in the Beagle Channel for at least three hours to ensure public safety. Chilean President Gabriel Boric, in a post shared on the platform X, urged all residents to adhere to evacuation protocols and assured the public that all available resources would be utilized to manage the situation effectively. Reports emerged of more than 1,700 individuals already evacuated from coastal areas, including 1,000 from Puerto Williams and 500 from Puerto Natales. Additionally, evacuation procedures were implemented at Chile’s Antarctic research bases where around 32 people followed guidelines to move to safer locations. Eyewitness accounts painted a picture of calm as residents sought shelter, indicating that they were well-prepared for such emergencies. As the situation unfolded, the Hydrographic and Oceanographic Service of the Chilean Navy (SHOA) advised that tsunami waves could reach the Antarctic region within the hour, while more remote locations might not be impacted for up to 12 hours. The timely and efficient evacuation efforts across both countries showcased effective communication between authorities and the community, encouraging the public to remain calm during this time of uncertainty. The local government in Ushuaia issued guidance for residents to stay composed in light of the earthquake's intensity, emphasizing the importance of being prepared for any aftershocks or subsequent waves.